{"id":34112,"date":"2026-10-20T15:07:29","date_gmt":"2026-10-20T08:07:29","guid":{"rendered":"https:\/\/etest.edu.vn\/?p=34112"},"modified":"2026-10-20T15:17:11","modified_gmt":"2026-10-20T08:17:11","slug":"ban-chat-cua-diem-so-digital-sat-adaptive-testing-item-response-theory-va-cach-nang-luc-duoc-do-luong","status":"publish","type":"post","link":"https:\/\/etest.edu.vn\/en\/ban-chat-cua-diem-so-digital-sat-adaptive-testing-item-response-theory-va-cach-nang-luc-duoc-do-luong\/","title":{"rendered":"B\u1ea3n Ch\u1ea5t C\u1ee7a \u0110i\u1ec3m S\u1ed1 Digital SAT: Adaptive Testing, Item Response Theory V\u00e0 C\u00e1ch N\u0103ng L\u1ef1c \u0110\u01b0\u1ee3c \u0110o L\u01b0\u1eddng"},"content":{"rendered":"

\u0110i\u1ec3m s\u1ed1 Digital SAT<\/b><\/a> kh\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 “\u0111\u00fang bao nhi\u00eau c\u00e2u th\u00ec \u0111\u01b0\u1ee3c b\u1ea5y nhi\u00eau \u0111i\u1ec3m”. Hai th\u00ed sinh c\u00f9ng tr\u1ea3 l\u1eddi \u0111\u00fang m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng c\u00e2u nh\u01b0 nhau trong m\u1ed9t ph\u1ea7n thi v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn hai m\u1ee9c \u0111i\u1ec3m kh\u00e1c nhau, v\u00e0 ch\u00ednh College Board c\u0169ng x\u00e1c nh\u1eadn \u0111i\u1ec1u n\u00e0y tr\u00ean trang gi\u1ea3i th\u00edch c\u00e1ch t\u00ednh \u0111i\u1ec3m. \u0110\u1eb1ng sau hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00f3 l\u00e0 hai n\u1ec1n t\u1ea3ng k\u1ef9 thu\u1eadt: thi\u1ebft k\u1ebf b\u00e0i thi th\u00edch \u1ee9ng (adaptive testing) v\u00e0 l\u00fd thuy\u1ebft \u1ee9ng \u0111\u00e1p c\u00e2u h\u1ecfi (Item Response Theory, vi\u1ebft t\u1eaft IRT). R\u1ea5t nhi\u1ec1u th\u00ed sinh Vi\u1ec7t Nam nghe n\u00f3i v\u1ec1 “module kh\u00f3, module d\u1ec5” hay “\u0111i\u1ec3m b\u1ecb ch\u1eb7n tr\u1ea7n” nh\u01b0ng ch\u01b0a th\u1ef1c s\u1ef1 hi\u1ec3u c\u01a1 ch\u1ebf n\u00e0y v\u1eadn h\u00e0nh ra sao, n\u00ean d\u1ec5 \u00f4n thi theo nh\u1eefng m\u1eb9o thi\u1ebfu c\u01a1 s\u1edf. B\u00e0i vi\u1ebft n\u00e0y s\u1ebd gi\u1ea3i th\u00edch b\u1ea3n ch\u1ea5t c\u1ee7a vi\u1ec7c \u0111o l\u01b0\u1eddng n\u0103ng l\u1ef1c trong Digital SAT, t\u00e1ch b\u1ea1ch r\u00f5 \u0111i\u1ec1u n\u00e0o l\u00e0 th\u00f4ng tin ch\u00ednh th\u1ee9c t\u1eeb College Board, \u0111i\u1ec1u n\u00e0o l\u00e0 ki\u1ebfn th\u1ee9c n\u1ec1n t\u1ea3ng c\u1ee7a ng\u00e0nh \u0111o l\u01b0\u1eddng gi\u00e1o d\u1ee5c, v\u00e0 \u0111i\u1ec1u n\u00e0o ch\u1ec9 l\u00e0 suy \u0111o\u00e1n ch\u01b0a \u0111\u01b0\u1ee3c x\u00e1c nh\u1eadn, \u0111\u1ec3 b\u1ea1n c\u00f3 th\u1ec3 x\u00e2y d\u1ef1ng chi\u1ebfn l\u01b0\u1ee3c \u00f4n luy\u1ec7n \u0111\u00fang \u0111\u1eafn thay v\u00ec ch\u1ea1y theo tin \u0111\u1ed3n.<\/span><\/p>\n

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B\u1ea3n ch\u1ea5t \u0111i\u1ec3m s\u1ed1 Digital SAT<\/figcaption><\/figure>\n

\u0110i\u1ec3m s\u1ed1 Digital SAT \u0111ang \u0111o l\u01b0\u1eddng \u0111i\u1ec1u g\u00ec?<\/b><\/h2>\n

V\u1ec1 nguy\u00ean t\u1eafc, m\u1ed9t b\u00e0i thi chu\u1ea9n h\u00f3a kh\u00f4ng nh\u1eb1m \u0111\u1ebfm s\u1ed1 c\u00e2u b\u1ea1n l\u00e0m \u0111\u00fang, m\u00e0 nh\u1eb1m \u01b0\u1edbc l\u01b0\u1ee3ng m\u1ed9t \u0111\u1ea1i l\u01b0\u1ee3ng kh\u00f4ng quan s\u00e1t tr\u1ef1c ti\u1ebfp \u0111\u01b0\u1ee3c: <\/span>n\u0103ng l\u1ef1c<\/b> c\u1ee7a th\u00ed sinh \u1edf m\u1ed9t l\u0129nh v\u1ef1c c\u1ee5 th\u1ec3. S\u1ed1 c\u00e2u \u0111\u00fang ch\u1ec9 l\u00e0 b\u1eb1ng ch\u1ee9ng gi\u00e1n ti\u1ebfp. Ng\u00e0nh \u0111o l\u01b0\u1eddng gi\u00e1o d\u1ee5c g\u1ecdi \u0111\u1ea1i l\u01b0\u1ee3ng n\u00e0y l\u00e0 n\u0103ng l\u1ef1c ti\u1ec1m \u1ea9n (latent ability), v\u00e0 m\u1ee5c ti\u00eau c\u1ee7a m\u1ecdi thi\u1ebft k\u1ebf b\u00e0i thi l\u00e0 suy ra \u0111\u1ea1i l\u01b0\u1ee3ng \u0111\u00f3 m\u1ed9t c\u00e1ch ch\u00ednh x\u00e1c nh\u1ea5t c\u00f3 th\u1ec3 t\u1eeb nh\u1eefng c\u00e2u tr\u1ea3 l\u1eddi quan s\u00e1t \u0111\u01b0\u1ee3c.<\/span><\/p>\n

Digital SAT \u0111\u01b0\u1ee3c ch\u1ea5m tr\u00ean thang 400\u20131600, l\u00e0 t\u1ed5ng c\u1ee7a hai \u0111i\u1ec3m th\u00e0nh ph\u1ea7n, m\u1ed7i ph\u1ea7n n\u1eb1m trong kho\u1ea3ng 200\u2013800: Reading and Writing v\u00e0 Math. M\u1ed7i ph\u1ea7n g\u1ed3m hai module, v\u00e0 \u0111i\u1ec3m c\u1ee7a m\u1ed9t ph\u1ea7n \u0111\u01b0\u1ee3c t\u00ednh d\u1ef1a tr\u00ean to\u00e0n b\u1ed9 k\u1ebft qu\u1ea3 c\u1ee7a c\u1ea3 hai module trong ph\u1ea7n \u0111\u00f3. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u0111i\u1ec3m s\u1ed1 kh\u00f4ng ph\u1ea3n \u00e1nh m\u1ed9t “s\u1ed1 c\u00e2u \u0111\u00fang” \u0111\u01a1n thu\u1ea7n, m\u00e0 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a m\u1ed9t qu\u00e1 tr\u00ecnh \u01b0\u1edbc l\u01b0\u1ee3ng c\u00f3 t\u00ednh \u0111\u1ebfn \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1eebng c\u00e2u h\u1ecfi m\u00e0 b\u1ea1n \u0111\u00e3 g\u1eb7p.<\/span><\/p>\n

Adaptive testing: b\u00e0i thi t\u1ef1 \u0111i\u1ec1u ch\u1ec9nh theo b\u1ea1n<\/b><\/h2>\n
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Adaptive Test l\u00e0 g\u00ec? H\u1ecdc sinh c\u1ea7n bi\u1ebft g\u00ec tr\u01b0\u1edbc khi \u0111i thi?<\/figcaption><\/figure>\n

C\u1ea5u tr\u00fac hai module trong m\u1ed7i ph\u1ea7n thi<\/b><\/h3>\n

Theo m\u00f4 t\u1ea3 ch\u00ednh th\u1ee9c c\u1ee7a College Board, m\u1ed7i ph\u1ea7n thi c\u1ee7a Digital SAT \u0111\u01b0\u1ee3c chia th\u00e0nh hai giai \u0111o\u1ea1n (module). Module 1 ch\u1ee9a c\u00e1c c\u00e2u h\u1ecfi v\u1edbi nhi\u1ec1u m\u1ee9c \u0111\u1ed9 kh\u00f3 kh\u00e1c nhau. D\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 l\u00e0m Module 1, h\u1ec7 th\u1ed1ng s\u1ebd x\u1ebfp th\u00ed sinh v\u00e0o Module 2 v\u1edbi m\u1ed9t “t\u1eadp h\u1ee3p c\u00e2u h\u1ecfi c\u00f3 ch\u1ee7 \u0111\u00edch” \u1edf m\u1ee9c kh\u00f3 cao h\u01a1n ho\u1eb7c th\u1ea5p h\u01a1n trung b\u00ecnh. Th\u1eddi gian cho m\u1ed7i module l\u00e0 32 ph\u00fat v\u1edbi Reading and Writing v\u00e0 35 ph\u00fat v\u1edbi Math. M\u1ed7i module g\u1ed3m kho\u1ea3ng 22\u201327 c\u00e2u h\u1ecfi, trong \u0111\u00f3 c\u00f3 hai c\u00e2u th\u1eed nghi\u1ec7m kh\u00f4ng t\u00ednh \u0111i\u1ec3m (con s\u1ed1 ch\u00ednh x\u00e1c kh\u00e1c nhau gi\u1eefa hai ph\u1ea7n thi).<\/span><\/p>\n

\u0110i\u1ec3m c\u1ea7n nh\u1ea5n m\u1ea1nh l\u00e0 Digital SAT thu\u1ed9c d\u1ea1ng <\/span>th\u00edch \u1ee9ng theo module (multistage adaptive)<\/b>, kh\u00f4ng ph\u1ea3i th\u00edch \u1ee9ng theo t\u1eebng c\u00e2u h\u1ecfi (question-by-question adaptive). Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh \u0111\u1ed9 kh\u00f3 ch\u1ec9 di\u1ec5n ra m\u1ed9t l\u1ea7n cho m\u1ed7i ph\u1ea7n thi, ngay sau Module 1. Trong c\u00f9ng m\u1ed9t module, \u0111\u1ed9 kh\u00f3 c\u1ee7a c\u00e1c c\u00e2u kh\u00f4ng thay \u0111\u1ed5i t\u00f9y theo vi\u1ec7c b\u1ea1n v\u1eeba tr\u1ea3 l\u1eddi \u0111\u00fang hay sai c\u00e2u tr\u01b0\u1edbc \u0111\u00f3.<\/span><\/p>\n

V\u00ec sao College Board ch\u1ecdn thi\u1ebft k\u1ebf th\u00edch \u1ee9ng?<\/b><\/h3>\n

M\u1ee5c \u0111\u00edch c\u1ed1t l\u00f5i c\u1ee7a thi\u1ebft k\u1ebf n\u00e0y l\u00e0 \u0111o ch\u00ednh x\u00e1c h\u01a1n v\u1edbi s\u1ed1 c\u00e2u h\u1ecfi \u00edt h\u01a1n. M\u1ed9t b\u00e0i thi truy\u1ec1n th\u1ed1ng ph\u1ea3i tr\u1ea3i \u0111\u1ec1u c\u00e2u h\u1ecfi d\u1ec5, trung b\u00ecnh, kh\u00f3 cho m\u1ecdi th\u00ed sinh, trong khi m\u1ed9t th\u00ed sinh c\u00f3 n\u0103ng l\u1ef1c r\u1ea5t cao s\u1ebd l\u00e3ng ph\u00ed th\u1eddi gian \u1edf nh\u1eefng c\u00e2u qu\u00e1 d\u1ec5, c\u00f2n th\u00ed sinh c\u00f3 n\u0103ng l\u1ef1c th\u1ea5p h\u01a1n s\u1ebd g\u1eb7p nhi\u1ec1u c\u00e2u qu\u00e1 kh\u00f3 m\u00e0 g\u1ea7n nh\u01b0 kh\u00f4ng cung c\u1ea5p th\u00eam th\u00f4ng tin n\u00e0o v\u1ec1 n\u0103ng l\u1ef1c c\u1ee7a h\u1ecd. B\u1eb1ng c\u00e1ch \u0111\u01b0a m\u1ed7i th\u00ed sinh \u0111\u1ebfn nh\u1eefng c\u00e2u h\u1ecfi ph\u00f9 h\u1ee3p v\u1edbi m\u1ee9c n\u0103ng l\u1ef1c \u01b0\u1edbc l\u01b0\u1ee3ng ban \u0111\u1ea7u c\u1ee7a h\u1ecd, b\u00e0i thi thu \u0111\u01b0\u1ee3c nhi\u1ec1u th\u00f4ng tin h\u1eefu \u00edch h\u01a1n tr\u00ean m\u1ed7i c\u00e2u h\u1ecfi. \u0110\u00e2y c\u0169ng l\u00e0 l\u00fd do Digital SAT ng\u1eafn h\u01a1n \u0111\u00e1ng k\u1ec3 so v\u1edbi SAT gi\u1ea5y tr\u01b0\u1edbc \u0111\u00e2y.<\/span><\/p>\n

Module kh\u00f3 v\u00e0 module d\u1ec5: nh\u1eefng \u0111i\u1ec1u \u0111\u00e3 bi\u1ebft v\u00e0 ch\u01b0a bi\u1ebft<\/b><\/h3>\n

M\u1ed9t hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn l\u00e0 cho r\u1eb1ng n\u1ebfu b\u1ecb x\u1ebfp v\u00e0o module d\u1ec5 th\u00ec \u0111i\u1ec3m t\u1ed1i \u0111a b\u1ecb kh\u00f3a \u1edf m\u1ed9t m\u1ee9c th\u1ea5p. Th\u1ef1c t\u1ebf, College Board kh\u00f4ng c\u00f4ng b\u1ed1 m\u1ed9t b\u1ea3ng quy \u0111\u1ed5i “\u0111i\u1ec3m tr\u1ea7n” chung cho m\u1ecdi phi\u00ean b\u1ea3n \u0111\u1ec1 thi, v\u00e0 c\u0169ng kh\u00f4ng c\u00f4ng b\u1ed1 ng\u01b0\u1ee1ng ch\u00ednh x\u00e1c \u0111\u1ec3 \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o module kh\u00f3 h\u01a1n. C\u00e1c con s\u1ed1 nh\u01b0 “ph\u1ea3i \u0111\u00fang kho\u1ea3ng hai ph\u1ea7n ba s\u1ed1 c\u00e2u \u1edf Module 1” l\u00e0 \u01b0\u1edbc t\u00ednh kh\u00f4ng ch\u00ednh th\u1ee9c t\u1eeb b\u00ean th\u1ee9 ba v\u00e0 c\u1ea7n \u0111\u01b0\u1ee3c xem l\u00e0 tham kh\u1ea3o th\u1eadn tr\u1ecdng. Ngo\u00e0i ra, c\u1ea3 hai nh\u00e1nh c\u1ee7a Module 2 v\u1eabn tr\u1ed9n c\u00e1c c\u00e2u d\u1ec5, trung b\u00ecnh v\u00e0 kh\u00f3, ch\u1ec9 kh\u00e1c \u1edf m\u1ee9c \u0111\u1ed9 kh\u00f3 trung b\u00ecnh, n\u00ean c\u1ea3m gi\u00e1c “module n\u00e0y kh\u00f3 hay d\u1ec5” trong l\u00fac l\u00e0m b\u00e0i kh\u00f4ng ph\u1ea3i l\u00e0 c\u01a1 s\u1edf \u0111\u00e1ng tin \u0111\u1ec3 suy ra m\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o nh\u00e1nh n\u00e0o.<\/span><\/p>\n

Item Response Theory: n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc c\u1ee7a vi\u1ec7c ch\u1ea5m \u0111i\u1ec3m<\/b><\/h2>\n
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Item Response Theory: n\u1ec1n t\u1ea3ng to\u00e1n h\u1ecdc c\u1ee7a vi\u1ec7c ch\u1ea5m \u0111i\u1ec3m<\/figcaption><\/figure>\n

IRT l\u00e0 g\u00ec?<\/b><\/h3>\n

Item Response Theory l\u00e0 m\u1ed9t h\u1ecd c\u00e1c m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea trong ng\u00e0nh \u0111o l\u01b0\u1eddng t\u00e2m l\u00fd v\u00e0 gi\u00e1o d\u1ee5c, m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa n\u0103ng l\u1ef1c c\u1ee7a th\u00ed sinh v\u00e0 kh\u1ea3 n\u0103ng tr\u1ea3 l\u1eddi \u0111\u00fang t\u1eebng c\u00e2u h\u1ecfi c\u1ee5 th\u1ec3. \u0110i\u1ec3m kh\u00e1c bi\u1ec7t c\u0103n b\u1ea3n so v\u1edbi c\u00e1ch ch\u1ea5m truy\u1ec1n th\u1ed1ng (\u0111\u1ebfm s\u1ed1 c\u00e2u \u0111\u00fang) l\u00e0 IRT xem <\/span>m\u1ed7i c\u00e2u h\u1ecfi l\u00e0 m\u1ed9t c\u00f4ng c\u1ee5 \u0111o c\u00f3 \u0111\u1eb7c t\u00ednh ri\u00eang<\/b>, ch\u1ee9 kh\u00f4ng ph\u1ea3i m\u1ecdi c\u00e2u \u0111\u1ec1u \u0111\u00f3ng g\u00f3p nh\u01b0 nhau.<\/span><\/p>\n

College Board x\u00e1c nh\u1eadn Digital SAT s\u1eed d\u1ee5ng IRT v\u00e0 n\u00eau r\u00f5 r\u1eb1ng \u0111i\u1ec3m s\u1ed1 l\u00e0 k\u1ebft qu\u1ea3 c\u1ee7a nhi\u1ec1u y\u1ebfu t\u1ed1, bao g\u1ed3m \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a nh\u1eefng c\u00e2u b\u1ea1n tr\u1ea3 l\u1eddi \u0111\u00fang ho\u1eb7c sai (ch\u1eb3ng h\u1ea1n m\u1ee9c \u0111\u1ed9 kh\u00f3) v\u00e0 x\u00e1c su\u1ea5t m\u00f4 h\u00ecnh cho th\u1ea5y m\u1ed9t m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi c\u00f3 th\u1ec3 l\u00e0 do \u0111o\u00e1n. H\u1ec7 qu\u1ea3 tr\u1ef1c ti\u1ebfp l\u00e0 hai th\u00ed sinh c\u00f3 c\u00f9ng s\u1ed1 c\u00e2u \u0111\u00fang trong m\u1ed9t ph\u1ea7n thi c\u00f3 th\u1ec3 nh\u1eadn \u0111i\u1ec3m th\u00e0nh ph\u1ea7n kh\u00e1c nhau, t\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c h\u1ecd l\u00e0m \u0111\u00fang nh\u1eefng c\u00e2u n\u00e0o.<\/span><\/p>\n

C\u00e1c kh\u00e1i ni\u1ec7m c\u1ed1t l\u00f5i c\u1ee7a IRT (ki\u1ebfn th\u1ee9c n\u1ec1n c\u1ee7a ng\u00e0nh \u0111o l\u01b0\u1eddng)<\/b><\/h3>\n

Ph\u1ea7n n\u00e0y m\u00f4 t\u1ea3 c\u00e1c kh\u00e1i ni\u1ec7m chung c\u1ee7a l\u00fd thuy\u1ebft IRT. College Board kh\u00f4ng c\u00f4ng b\u1ed1 chi ti\u1ebft m\u00f4 h\u00ecnh c\u1ee5 th\u1ec3 hay c\u00f4ng th\u1ee9c m\u00e0 Digital SAT s\u1eed d\u1ee5ng, n\u00ean c\u00e1c m\u00f4 t\u1ea3 d\u01b0\u1edbi \u0111\u00e2y gi\u00fap b\u1ea1n hi\u1ec3u nguy\u00ean l\u00fd, kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f4ng th\u1ee9c ch\u1ea5m \u0111i\u1ec3m th\u1eadt.<\/span><\/p>\n

N\u0103ng l\u1ef1c (th\u01b0\u1eddng k\u00fd hi\u1ec7u l\u00e0 \u03b8, \u0111\u1ecdc l\u00e0 theta).<\/b> \u0110\u00e2y l\u00e0 \u0111\u1ea1i l\u01b0\u1ee3ng ti\u1ec1m \u1ea9n m\u00e0 b\u00e0i thi c\u1ea7n \u01b0\u1edbc l\u01b0\u1ee3ng. Theta c\u00e0ng cao th\u00ec th\u00ed sinh c\u00e0ng c\u00f3 kh\u1ea3 n\u0103ng tr\u1ea3 l\u1eddi \u0111\u00fang nhi\u1ec1u lo\u1ea1i c\u00e2u h\u1ecfi h\u01a1n.<\/span><\/p>\n

\u0110\u1ed9 kh\u00f3 c\u1ee7a c\u00e2u h\u1ecfi (difficulty).<\/b> M\u1ed7i c\u00e2u h\u1ecfi \u0111\u01b0\u1ee3c g\u00e1n m\u1ed9t m\u1ee9c \u0111\u1ed9 kh\u00f3 tr\u00ean c\u00f9ng thang \u0111o v\u1edbi n\u0103ng l\u1ef1c. M\u1ed9t c\u00e2u h\u1ecfi kh\u00f3 l\u00e0 c\u00e2u m\u00e0 ch\u1ec9 nh\u1eefng th\u00ed sinh c\u00f3 theta cao m\u1edbi c\u00f3 x\u00e1c su\u1ea5t tr\u1ea3 l\u1eddi \u0111\u00fang l\u1edbn. Vi\u1ec7c g\u00e1n \u0111\u1ed9 kh\u00f3 n\u00e0y d\u1ef1a tr\u00ean d\u1eef li\u1ec7u th\u1ef1c nghi\u1ec7m t\u1eeb r\u1ea5t nhi\u1ec1u th\u00ed sinh \u0111\u00e3 l\u00e0m c\u00e2u h\u1ecfi \u0111\u00f3, v\u00e0 \u0111\u00e2y ch\u00ednh l\u00e0 l\u00fd do m\u1ed7i module c\u00f3 hai c\u00e2u th\u1eed nghi\u1ec7m kh\u00f4ng t\u00ednh \u0111i\u1ec3m: \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u hi\u1ec7u ch\u1ec9nh cho c\u00e1c c\u00e2u h\u1ecfi d\u00f9ng trong t\u01b0\u01a1ng lai.<\/span><\/p>\n

\u0110\u1ed9 ph\u00e2n bi\u1ec7t (discrimination).<\/b> M\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi “ph\u00e2n lo\u1ea1i” th\u00ed sinh t\u1ed1t h\u01a1n c\u00e1c c\u00e2u kh\u00e1c: x\u00e1c su\u1ea5t tr\u1ea3 l\u1eddi \u0111\u00fang t\u0103ng r\u1ea5t nhanh khi n\u0103ng l\u1ef1c t\u0103ng. C\u00e2u h\u1ecfi c\u00f3 \u0111\u1ed9 ph\u00e2n bi\u1ec7t cao cung c\u1ea5p nhi\u1ec1u th\u00f4ng tin h\u01a1n cho vi\u1ec7c \u01b0\u1edbc l\u01b0\u1ee3ng n\u0103ng l\u1ef1c.<\/span><\/p>\n

Y\u1ebfu t\u1ed1 \u0111o\u00e1n m\u00f2 (guessing).<\/b> V\u1edbi c\u00e2u h\u1ecfi tr\u1eafc nghi\u1ec7m, m\u1ed9t th\u00ed sinh c\u00f3 n\u0103ng l\u1ef1c r\u1ea5t th\u1ea5p v\u1eabn c\u00f3 th\u1ec3 \u0111o\u00e1n \u0111\u00fang ng\u1eabu nhi\u00ean. C\u00e1c m\u00f4 h\u00ecnh IRT ba tham s\u1ed1 (3PL) b\u1ed5 sung m\u1ed9t tham s\u1ed1 \u0111\u1ec3 m\u00f4 t\u1ea3 x\u00e1c su\u1ea5t n\u1ec1n n\u00e0y, v\u00e0 \u0111i\u1ec1u n\u00e0y ph\u00f9 h\u1ee3p v\u1edbi vi\u1ec7c College Board nh\u1eafc \u0111\u1ebfn “x\u00e1c su\u1ea5t m\u1eabu tr\u1ea3 l\u1eddi cho th\u1ea5y s\u1ef1 \u0111o\u00e1n” trong m\u00f4 t\u1ea3 \u0111i\u1ec3m s\u1ed1.<\/span><\/p>\n

\u0110\u01b0\u1eddng cong \u0111\u1eb7c tr\u01b0ng c\u00e2u h\u1ecfi (item characteristic curve).<\/b> V\u1edbi m\u1ed7i c\u00e2u, \u0111\u01b0\u1eddng cong n\u00e0y bi\u1ec3u di\u1ec5n x\u00e1c su\u1ea5t tr\u1ea3 l\u1eddi \u0111\u00fang theo n\u0103ng l\u1ef1c: g\u1ea7n 0 ho\u1eb7c b\u1eb1ng m\u1ee9c \u0111o\u00e1n m\u00f2 \u1edf n\u0103ng l\u1ef1c th\u1ea5p, t\u0103ng d\u1ea7n \u1edf v\u00f9ng n\u0103ng l\u1ef1c xung quanh \u0111\u1ed9 kh\u00f3 c\u1ee7a c\u00e2u, r\u1ed3i ti\u1ebfn s\u00e1t 1 \u1edf n\u0103ng l\u1ef1c cao.<\/span><\/p>\n

T\u1eeb c\u00e2u tr\u1ea3 l\u1eddi \u0111\u1ebfn \u0111i\u1ec3m s\u1ed1: \u01b0\u1edbc l\u01b0\u1ee3ng n\u0103ng l\u1ef1c<\/b><\/h3>\n

Khi \u0111\u00e3 c\u00f3 c\u00e1c tham s\u1ed1 c\u1ee7a t\u1eebng c\u00e2u h\u1ecfi, vi\u1ec7c ch\u1ea5m \u0111i\u1ec3m tr\u1edf th\u00e0nh b\u00e0i to\u00e1n ng\u01b0\u1ee3c: cho tr\u01b0\u1edbc m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang sai c\u1ee7a m\u1ed9t th\u00ed sinh, t\u00ecm gi\u00e1 tr\u1ecb n\u0103ng l\u1ef1c h\u1ee3p l\u00fd nh\u1ea5t. M\u1ed9t ph\u01b0\u01a1ng ph\u00e1p ph\u1ed5 bi\u1ebfn trong l\u00fd thuy\u1ebft l\u00e0 ch\u1ecdn gi\u00e1 tr\u1ecb theta l\u00e0m cho m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi quan s\u00e1t \u0111\u01b0\u1ee3c c\u00f3 kh\u1ea3 n\u0103ng x\u1ea3y ra cao nh\u1ea5t (\u01b0\u1edbc l\u01b0\u1ee3ng h\u1ee3p l\u00fd c\u1ef1c \u0111\u1ea1i). Sau \u0111\u00f3, gi\u00e1 tr\u1ecb n\u0103ng l\u1ef1c \u01b0\u1edbc l\u01b0\u1ee3ng \u0111\u01b0\u1ee3c quy \u0111\u1ed5i (equating) sang thang \u0111i\u1ec3m 200\u2013800 sao cho \u0111i\u1ec3m s\u1ed1 c\u00f3 \u00fd ngh\u0129a nh\u1ea5t qu\u00e1n gi\u1eefa c\u00e1c phi\u00ean b\u1ea3n \u0111\u1ec1 v\u00e0 c\u00e1c k\u1ef3 thi kh\u00e1c nhau. Vi\u1ec7c quy \u0111\u1ed5i n\u00e0y l\u00e0 l\u00fd do m\u1ed9t \u0111i\u1ec3m 1050 tr\u00ean Digital SAT \u0111\u01b0\u1ee3c College Board n\u00f3i l\u00e0 mang c\u00f9ng \u00fd ngh\u0129a v\u1edbi 1050 tr\u00ean SAT gi\u1ea5y, d\u1ef1a tr\u00ean c\u00e1c nghi\u00ean c\u1ee9u \u0111\u1ed1i chi\u1ebfu (concordance) \u0111\u00e3 c\u00f4ng b\u1ed1.<\/span><\/p>\n

C\u1ea7n l\u01b0u \u00fd r\u1eb1ng \u1edf \u0111\u00e2y ch\u1ec9 l\u00e0 m\u00f4 t\u1ea3 nguy\u00ean l\u00fd chung c\u1ee7a IRT. C\u00e1ch h\u1ec7 th\u1ed1ng c\u1ee7a College Board th\u1ef1c s\u1ef1 ch\u1ecdn m\u00f4 h\u00ecnh, \u01b0\u1edbc l\u01b0\u1ee3ng v\u00e0 quy \u0111\u1ed5i kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 chi ti\u1ebft, n\u00ean b\u1ea5t k\u1ef3 b\u1ea3ng quy \u0111\u1ed5i “s\u1ed1 c\u00e2u \u0111\u00fang sang \u0111i\u1ec3m” n\u00e0o l\u01b0u h\u00e0nh tr\u00ean m\u1ea1ng c\u0169ng ch\u1ec9 l\u00e0 \u01b0\u1edbc t\u00ednh, kh\u00f4ng ph\u1ea3i c\u00f4ng th\u1ee9c ch\u00ednh th\u1ee9c.<\/span><\/p>\n

V\u00ec sao c\u00f9ng s\u1ed1 c\u00e2u \u0111\u00fang nh\u01b0ng \u0111i\u1ec3m l\u1ea1i kh\u00e1c nhau?<\/b><\/h2>\n

H\u00e3y h\u00ecnh dung hai th\u00ed sinh A v\u00e0 B c\u00f9ng tr\u1ea3 l\u1eddi \u0111\u00fang 40 c\u00e2u trong ph\u1ea7n Math. Th\u00ed sinh A l\u00e0m \u0111\u00fang h\u1ea7u h\u1ebft c\u00e1c c\u00e2u \u1edf m\u1ee9c \u0111\u1ed9 kh\u00f3 cao v\u00e0 sai nh\u1eefng c\u00e2u d\u1ec5 do b\u1ea5t c\u1ea9n, trong khi th\u00ed sinh B l\u00e0m \u0111\u00fang t\u1ea5t c\u1ea3 c\u00e2u d\u1ec5 v\u00e0 trung b\u00ecnh nh\u01b0ng sai g\u1ea7n h\u1ebft c\u00e2u kh\u00f3. Theo logic c\u1ee7a IRT, m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi c\u1ee7a hai b\u1ea1n cho th\u1ea5y nh\u1eefng b\u1eb1ng ch\u1ee9ng kh\u00e1c nhau v\u1ec1 n\u0103ng l\u1ef1c: vi\u1ec7c l\u00e0m \u0111\u00fang c\u00e2u kh\u00f3 l\u00e0 b\u1eb1ng ch\u1ee9ng m\u1ea1nh h\u01a1n cho n\u0103ng l\u1ef1c cao so v\u1edbi vi\u1ec7c l\u00e0m \u0111\u00fang c\u00e2u d\u1ec5. V\u00ec v\u1eady \u0111i\u1ec3m s\u1ed1 c\u1ee7a hai th\u00ed sinh c\u00f3 th\u1ec3 kh\u00e1c nhau, d\u00f9 t\u1ed5ng s\u1ed1 c\u00e2u \u0111\u00fang b\u1eb1ng nhau.<\/span><\/p>\n

V\u00ed d\u1ee5 tr\u00ean ch\u1ec9 l\u00e0 minh h\u1ecda cho nguy\u00ean l\u00fd, kh\u00f4ng ph\u1ea3i m\u1ed9t ph\u00e9p t\u00ednh \u0111i\u1ec3m th\u1eadt. \u0110i\u1ec3m quan tr\u1ecdng n\u1eb1m \u1edf th\u00f4ng \u0111i\u1ec7p th\u1ef1c t\u1ebf: College Board c\u0169ng kh\u00f4ng c\u00f4ng b\u1ed1 gi\u00e1 tr\u1ecb \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh cho t\u1eebng c\u00e2u h\u1ecfi, n\u00ean b\u1ea5t k\u1ef3 c\u00e1ch t\u00ednh “m\u1ed7i c\u00e2u \u0111\u00e1ng bao nhi\u00eau \u0111i\u1ec3m” n\u00e0o c\u0169ng ch\u1ec9 l\u00e0 m\u00f4 h\u00ecnh t\u1ef1 d\u1ef1ng c\u1ee7a b\u00ean th\u1ee9 ba.<\/span><\/p>\n

C\u00e2u h\u1ecfi th\u1eed nghi\u1ec7m kh\u00f4ng t\u00ednh \u0111i\u1ec3m: v\u00ec sao b\u1ea1n n\u00ean coi m\u1ecdi c\u00e2u \u0111\u1ec1u quan tr\u1ecdng?<\/b><\/h2>\n

M\u1ed7i module ch\u1ee9a hai c\u00e2u h\u1ecfi th\u1eed nghi\u1ec7m (pretest) kh\u00f4ng \u1ea3nh h\u01b0\u1edfng \u0111\u1ebfn \u0111i\u1ec3m s\u1ed1, \u0111\u01b0\u1ee3c d\u00f9ng \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u hi\u1ec7u ch\u1ec9nh cho c\u00e1c \u0111\u1ec1 thi t\u01b0\u01a1ng lai. Tuy nhi\u00ean, nh\u1eefng c\u00e2u n\u00e0y kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u v\u00e0 th\u00ed sinh kh\u00f4ng c\u00f3 c\u00e1ch n\u00e0o nh\u1eadn bi\u1ebft trong l\u00fac l\u00e0m b\u00e0i. Do \u0111\u00f3, chi\u1ebfn l\u01b0\u1ee3c duy nh\u1ea5t h\u1ee3p l\u00fd l\u00e0 xem m\u1ecdi c\u00e2u h\u1ecfi \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111i\u1ec3m, kh\u00f4ng n\u00ean b\u1ecf c\u00f4ng suy \u0111o\u00e1n xem c\u00e2u n\u00e0o l\u00e0 c\u00e2u th\u1eed nghi\u1ec7m.<\/span><\/p>\n

Nh\u1eefng hi\u1ec3u l\u1ea7m ph\u1ed5 bi\u1ebfn v\u1ec1 \u0111i\u1ec3m s\u1ed1 Digital SAT<\/b><\/h2>\n

Hi\u1ec3u l\u1ea7m 1: “C\u1ed1 t\u00ecnh l\u00e0m sai Module 1 \u0111\u1ec3 \u0111\u01b0\u1ee3c module d\u1ec5 h\u01a1n th\u00ec d\u1ec5 \u0111\u1ea1t \u0111i\u1ec3m cao.”<\/b> Kh\u00f4ng c\u00f3 c\u01a1 s\u1edf n\u00e0o cho \u0111i\u1ec1u n\u00e0y. Module 1 v\u1eeba quy\u1ebft \u0111\u1ecbnh nh\u00e1nh Module 2, v\u1eeba g\u00f3p tr\u1ef1c ti\u1ebfp v\u00e0o \u0111i\u1ec3m s\u1ed1 c\u1ee7a ph\u1ea7n thi \u0111\u00f3. L\u00e0m k\u00e9m Module 1 ch\u1ec9 l\u00e0m gi\u1ea3m l\u01b0\u1ee3ng b\u1eb1ng ch\u1ee9ng v\u1ec1 n\u0103ng l\u1ef1c c\u1ee7a b\u1ea1n.<\/span><\/p>\n

Hi\u1ec3u l\u1ea7m 2: “C\u00e2u h\u1ecfi cu\u1ed1i module lu\u00f4n kh\u00f3 h\u01a1n v\u00e0 \u0111\u00e1ng \u0111i\u1ec3m h\u01a1n.”<\/b> Th\u1ee9 t\u1ef1 c\u00e2u h\u1ecfi trong module th\u01b0\u1eddng \u0111\u01b0\u1ee3c s\u1eafp x\u1ebfp theo m\u1ee5c \u0111\u00edch tr\u00ecnh b\u00e0y, v\u00e0 College Board kh\u00f4ng c\u00f4ng b\u1ed1 gi\u00e1 tr\u1ecb \u0111i\u1ec3m c\u1ee7a t\u1eebng c\u00e2u. \u0110i\u1ec1u quan tr\u1ecdng kh\u00f4ng ph\u1ea3i l\u00e0 \u0111o\u00e1n c\u00e2u n\u00e0o \u0111\u00e1ng \u0111i\u1ec3m h\u01a1n, m\u00e0 l\u00e0 l\u00e0m ch\u00ednh x\u00e1c nh\u1ea5t c\u00f3 th\u1ec3 \u1edf m\u1ecdi c\u00e2u.<\/span><\/p>\n

Hi\u1ec3u l\u1ea7m 3: “Sai c\u00e2u n\u00e0o \u0111\u00f3 s\u1ebd b\u1ecb tr\u1eeb \u0111i\u1ec3m.”<\/b> Digital SAT kh\u00f4ng tr\u1eeb \u0111i\u1ec3m khi tr\u1ea3 l\u1eddi sai. College Board khuy\u1ebfn ngh\u1ecb th\u00ed sinh n\u00ean \u0111o\u00e1n thay v\u00ec b\u1ecf tr\u1ed1ng, \u0111\u1eb7c bi\u1ec7t sau khi \u0111\u00e3 lo\u1ea1i \u0111\u01b0\u1ee3c m\u1ed9t ho\u1eb7c hai ph\u01b0\u01a1ng \u00e1n.<\/span><\/p>\n

Hi\u1ec3u l\u1ea7m 4: “C\u00f3 th\u1ec3 d\u00f9ng b\u1ea3ng quy \u0111\u1ed5i tr\u00ean m\u1ea1ng \u0111\u1ec3 bi\u1ebft ch\u00ednh x\u00e1c \u0111i\u1ec3m th\u1eadt.”<\/b> C\u00e1c b\u1ea3ng quy \u0111\u1ed5i ch\u1ec9 mang t\u00ednh tham kh\u1ea3o. \u0110i\u1ec3m th\u1eadt ph\u1ee5 thu\u1ed9c v\u00e0o \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a c\u00e1c c\u00e2u h\u1ecfi b\u1ea1n th\u1ef1c s\u1ef1 g\u1eb7p v\u00e0 v\u00e0o qu\u00e1 tr\u00ecnh quy \u0111\u1ed5i ch\u00ednh th\u1ee9c m\u00e0 College Board \u00e1p d\u1ee5ng cho t\u1eebng phi\u00ean b\u1ea3n \u0111\u1ec1.<\/span><\/p>\n

\u00dd ngh\u0129a th\u1ef1c t\u1ebf: n\u00ean \u00f4n luy\u1ec7n v\u00e0 l\u00e0m b\u00e0i nh\u01b0 th\u1ebf n\u00e0o?<\/b><\/h2>\n

Hi\u1ec3u b\u1ea3n ch\u1ea5t c\u1ee7a \u0111i\u1ec3m s\u1ed1 kh\u00f4ng nh\u1eb1m “b\u1ebb kh\u00f3a” b\u00e0i thi, m\u00e0 gi\u00fap b\u1ea1n x\u00e1c \u0111\u1ecbnh \u0111\u00fang \u01b0u ti\u00ean.<\/span><\/p>\n

L\u00e0m ch\u00ednh x\u00e1c ngay t\u1eeb nh\u1eefng c\u00e2u \u0111\u1ea7u ti\u00ean<\/b><\/h3>\n

V\u00ec Module 1 g\u00f3p v\u00e0o \u0111i\u1ec3m s\u1ed1 v\u00e0 quy\u1ebft \u0111\u1ecbnh \u0111\u1ed9 kh\u00f3 c\u1ee7a Module 2, \u0111\u1ed9 ch\u00ednh x\u00e1c \u1edf Module 1 l\u00e0 n\u1ec1n m\u00f3ng c\u1ee7a c\u1ea3 ph\u1ea7n thi. H\u00e3y d\u00e0nh s\u1ef1 c\u1ea9n tr\u1ecdng cho t\u1eebng c\u00e2u thay v\u00ec v\u1ed9i v\u00e0ng \u0111\u1ec3 “d\u00e0nh s\u1ee9c cho ph\u1ea7n sau”.<\/span><\/p>\n

Tr\u1ea3 l\u1eddi m\u1ecdi c\u00e2u h\u1ecfi<\/b><\/h3>\n

Do kh\u00f4ng b\u1ecb tr\u1eeb \u0111i\u1ec3m khi sai, vi\u1ec7c \u0111\u1ec3 tr\u1ed1ng m\u1ed9t c\u00e2u ch\u1ec9 l\u00e0m m\u1ea5t c\u01a1 h\u1ed9i. H\u00e3y d\u00f9ng quy tr\u00ecnh lo\u1ea1i tr\u1eeb \u0111\u1ec3 t\u0103ng x\u00e1c su\u1ea5t ch\u1ecdn \u0111\u00fang, \u0111\u00e1nh d\u1ea5u nh\u1eefng c\u00e2u kh\u00f3 \u0111\u1ec3 quay l\u1ea1i v\u00e0 lu\u00f4n ch\u1ed1t m\u1ed9t \u0111\u00e1p \u00e1n tr\u01b0\u1edbc khi h\u1ebft gi\u1edd.<\/span><\/p>\n

X\u00e2y d\u1ef1ng n\u0103ng l\u1ef1c th\u1ef1c ch\u1ea5t, kh\u00f4ng ch\u1ea1y theo m\u1eb9o<\/b><\/h3>\n

V\u00ec \u0111i\u1ec3m s\u1ed1 ph\u1ea3n \u00e1nh n\u0103ng l\u1ef1c \u01b0\u1edbc l\u01b0\u1ee3ng t\u1eeb to\u00e0n b\u1ed9 m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi, c\u00e1ch \u0111\u00e1ng tin nh\u1ea5t \u0111\u1ec3 t\u0103ng \u0111i\u1ec3m l\u00e0 c\u1ee7ng c\u1ed1 ki\u1ebfn th\u1ee9c n\u1ec1n v\u00e0 k\u1ef9 n\u0103ng x\u1eed l\u00fd c\u00e2u h\u1ecfi \u1edf m\u1ecdi m\u1ee9c \u0111\u1ed9 kh\u00f3. Sau m\u1ed7i b\u00e0i thi th\u1eed, h\u00e3y xem l\u1ea1i m\u1ecdi c\u00e2u sai v\u00e0 c\u1ea3 nh\u1eefng c\u00e2u \u0111\u00fang nh\u01b0ng c\u00f2n ph\u00e2n v\u00e2n, ph\u00e2n lo\u1ea1i nguy\u00ean nh\u00e2n (thi\u1ebfu ki\u1ebfn th\u1ee9c, \u0111\u1ecdc sai \u0111\u1ec1, t\u00ednh sai, thi\u1ebfu th\u1eddi gian) v\u00e0 t\u1eadp trung kh\u1eafc ph\u1ee5c hai \u0111\u1ebfn ba \u0111i\u1ec3m y\u1ebfu l\u1edbn nh\u1ea5t tr\u01b0\u1edbc khi thi l\u1ea1i.<\/span><\/p>\n

Luy\u1ec7n t\u1eadp trong m\u00f4i tr\u01b0\u1eddng m\u00f4 ph\u1ecfng \u0111\u00fang <\/b>c\u1ea5u tr\u00fac thi<\/b><\/a><\/h3>\n

\u0110\u1ec3 l\u00e0m quen v\u1edbi nh\u1ecbp \u0111\u1ed9 hai module v\u00e0 \u00e1p l\u1ef1c th\u1eddi gian, b\u1ea1n n\u00ean luy\u1ec7n tr\u00ean c\u00e1c b\u00e0i thi th\u1eed c\u00f3 \u0111\u1ecbnh d\u1ea1ng t\u01b0\u01a1ng t\u1ef1 b\u00e0i thi th\u1eadt, bao g\u1ed3m c\u1ea3 c\u00e1c b\u00e0i thi th\u1eed trong \u1ee9ng d\u1ee5ng Bluebook c\u1ee7a College Board, thay v\u00ec ch\u1ec9 l\u00e0m c\u00e1c b\u1ed9 c\u00e2u h\u1ecfi r\u1eddi r\u1ea1c.<\/span><\/p>\n

V\u1eady b\u1ea3n ch\u1ea5t \u0111i\u1ec3m s\u1ed1 Digital SAT \u0111\u00e1nh gi\u00e1 \u0111i\u1ec1u g\u00ec?<\/b><\/h2>\n

\u0110i\u1ec3m s\u1ed1 Digital SAT l\u00e0 m\u1ed9t \u01b0\u1edbc l\u01b0\u1ee3ng n\u0103ng l\u1ef1c d\u1ef1a tr\u00ean to\u00e0n b\u1ed9 m\u1eabu c\u00e2u tr\u1ea3 l\u1eddi c\u1ee7a b\u1ea1n, \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng tr\u00ean n\u1ec1n t\u1ea3ng thi\u1ebft k\u1ebf th\u00edch \u1ee9ng theo module v\u00e0 l\u00fd thuy\u1ebft IRT, ch\u1ee9 kh\u00f4ng ph\u1ea3i ph\u00e9p \u0111\u1ebfm s\u1ed1 c\u00e2u \u0111\u00fang. Hi\u1ec3u \u0111\u01b0\u1ee3c \u0111i\u1ec1u n\u00e0y gi\u00fap b\u1ea1n tr\u00e1nh nh\u1eefng k\u1ef3 v\u1ecdng sai l\u1ec7ch v\u1ec1 \u0111i\u1ec3m tr\u1ea7n, gi\u00e1 tr\u1ecb t\u1eebng c\u00e2u hay c\u00e1c m\u1eb9o “\u0111\u00e1nh l\u1eeba” h\u1ec7 th\u1ed1ng, \u0111\u1ed3ng th\u1eddi \u0111\u1eb7t \u0111\u00fang tr\u1ecdng t\u00e2m v\u00e0o vi\u1ec7c n\u00e2ng n\u0103ng l\u1ef1c th\u1eadt v\u00e0 l\u00e0m b\u00e0i ch\u00ednh x\u00e1c \u1edf m\u1ecdi c\u00e2u h\u1ecfi. Khi \u0111\u1ed1i chi\u1ebfu b\u1ea5t k\u1ef3 th\u00f4ng tin n\u00e0o v\u1ec1 c\u00e1ch ch\u1ea5m \u0111i\u1ec3m, b\u1ea1n n\u00ean \u01b0u ti\u00ean c\u00e1c t\u00e0i li\u1ec7u ch\u00ednh th\u1ee9c c\u1ee7a College Board v\u00e0 xem c\u00e1c b\u1ea3ng quy \u0111\u1ed5i hay m\u00f4 h\u00ecnh l\u01b0u h\u00e0nh tr\u00ean m\u1ea1ng nh\u01b0 nh\u1eefng c\u00f4ng c\u1ee5 tham kh\u1ea3o, kh\u00f4ng ph\u1ea3i s\u1ef1 th\u1eadt tuy\u1ec7t \u0111\u1ed1i.<\/span><\/p>\n

N\u01a1i h\u1ecdc SAT v\u00e0 l\u00e0m h\u1ed3 s\u01a1 du h\u1ecdc uy t\u00edn t\u1ea1i TP.HCM?<\/b><\/h2>\n

\"\"<\/p>\n

ETEST <\/span><\/a>l\u00e0 trung t\u00e2m luy\u1ec7n thi SAT v\u1edbi <\/span>\u0111\u1ed9i ng\u0169 gi\u00e1o vi\u00ean gi\u00e0u kinh nghi\u1ec7m<\/span><\/a>, \u0111\u1ed3ng h\u00e0nh c\u00f9ng h\u1ecdc sinh kh\u00f4ng ch\u1ec9 trong vi\u1ec7c n\u00e2ng cao \u0111i\u1ec3m s\u1ed1 m\u00e0 c\u00f2n t\u01b0 v\u1ea5n chi\u1ebfn l\u01b0\u1ee3c thi v\u00e0 g\u1eedi \u0111i\u1ec3m ph\u00f9 h\u1ee3p v\u1edbi t\u1eebng tr\u01b0\u1eddng m\u1ee5c ti\u00eau. V\u1edbi l\u1ed9 tr\u00ecnh h\u1ecdc \u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a v\u00e0 n\u1ec1n t\u1ea3ng luy\u1ec7n thi m\u00f4 ph\u1ecfng s\u00e1t \u0111\u1ec1 thi th\u1eadt, ETEST gi\u00fap h\u1ecdc sinh t\u1ef1 tin \u0111\u1ea1t \u0111i\u1ec3m SAT mong mu\u1ed1n v\u00e0 x\u00e2y d\u1ef1ng h\u1ed3 s\u01a1 du h\u1ecdc hi\u1ec7u qu\u1ea3.<\/span><\/p>\n

B\u00ean c\u1ea1nh SAT, ETEST c\u00f2n c\u00f3 l\u1ed9 tr\u00ecnh h\u1ecdc <\/span>IELTS <\/span><\/a>\u00a0\u0111\u01b0\u1ee3c c\u00e1 nh\u00e2n h\u00f3a theo \u0111\u00fang m\u1ee5c ti\u00eau c\u1ee7a t\u1eebng h\u1ecdc vi\u00ean cho c\u1ea3 4 k\u1ef9 n\u0103ng tron (<\/span>Listen<\/span><\/a>, <\/span>\u0110\u1ecdc<\/span><\/a>, <\/span>Write<\/span><\/a>, <\/span>Speak<\/span><\/a>). Ngo\u00e0i ra, b\u1ea1n c\u00f3 nhu c\u1ea7u \u00f4n luy\u1ec7n ti\u1ebfng anh ph\u1ee5c v\u1ee5 <\/span>du h\u1ecdc<\/span><\/a> cho m\u1ee5c ti\u00eau \u0111\u1ecbnh c\u01b0, l\u00e0m vi\u1ec7c \u2014 ETEST gi\u00fap h\u1ecdc vi\u00ean \u00f4n luy\u1ec7n \u0111\u00fang tr\u1ecdng t\u00e2m v\u00e0 \u0111\u1ea1t k\u1ebft qu\u1ea3 mong mu\u1ed1n.<\/span><\/p>\n

FAQ \u2013 C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/b><\/h2>\n

Adaptive testing trong Digital SAT l\u00e0 g\u00ec?<\/b> L\u00e0 thi\u1ebft k\u1ebf trong \u0111\u00f3 m\u1ed7i ph\u1ea7n thi c\u00f3 hai module v\u00e0 \u0111\u1ed9 kh\u00f3 c\u1ee7a Module 2 \u0111\u01b0\u1ee3c \u0111i\u1ec1u ch\u1ec9nh d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 Module 1. Vi\u1ec7c \u0111i\u1ec1u ch\u1ec9nh di\u1ec5n ra theo module ch\u1ee9 kh\u00f4ng theo t\u1eebng c\u00e2u h\u1ecfi.<\/span><\/p>\n

Item Response Theory l\u00e0 g\u00ec v\u00e0 Digital SAT c\u00f3 d\u00f9ng kh\u00f4ng?<\/b> IRT l\u00e0 h\u1ecd m\u00f4 h\u00ecnh th\u1ed1ng k\u00ea m\u00f4 t\u1ea3 m\u1ed1i quan h\u1ec7 gi\u1eefa n\u0103ng l\u1ef1c th\u00ed sinh v\u00e0 kh\u1ea3 n\u0103ng tr\u1ea3 l\u1eddi \u0111\u00fang t\u1eebng c\u00e2u h\u1ecfi. College Board x\u00e1c nh\u1eadn Digital SAT s\u1eed d\u1ee5ng IRT \u0111\u1ec3 ch\u1ea5m \u0111i\u1ec3m.<\/span><\/p>\n

V\u00ec sao c\u00f9ng s\u1ed1 c\u00e2u \u0111\u00fang nh\u01b0ng \u0111i\u1ec3m c\u00f3 th\u1ec3 kh\u00e1c nhau?<\/b> V\u00ec \u0111i\u1ec3m s\u1ed1 t\u00ednh \u0111\u1ebfn \u0111\u1eb7c \u0111i\u1ec3m c\u1ee7a t\u1eebng c\u00e2u h\u1ecfi b\u1ea1n tr\u1ea3 l\u1eddi \u0111\u00fang ho\u1eb7c sai, ch\u1eb3ng h\u1ea1n m\u1ee9c \u0111\u1ed9 kh\u00f3, ch\u1ee9 kh\u00f4ng ch\u1ec9 \u0111\u1ebfm s\u1ed1 c\u00e2u \u0111\u00fang. College Board n\u00eau r\u00f5 \u0111i\u1ec1u n\u00e0y trong m\u00f4 t\u1ea3 c\u00e1ch t\u00ednh \u0111i\u1ec3m.<\/span><\/p>\n

M\u1ed7i c\u00e2u h\u1ecfi trong Digital SAT \u0111\u00e1ng bao nhi\u00eau \u0111i\u1ec3m?<\/b> College Board kh\u00f4ng c\u00f4ng b\u1ed1 gi\u00e1 tr\u1ecb \u0111i\u1ec3m c\u1ed1 \u0111\u1ecbnh cho t\u1eebng c\u00e2u h\u1ecfi. C\u00e1c m\u00f4 h\u00ecnh t\u00ednh \u0111i\u1ec3m t\u1eebng c\u00e2u m\u00e0 b\u1ea1n th\u1ea5y tr\u00ean m\u1ea1ng l\u00e0 \u01b0\u1edbc t\u00ednh c\u1ee7a b\u00ean th\u1ee9 ba.<\/span><\/p>\n

B\u1ecb x\u1ebfp v\u00e0o module d\u1ec5 th\u00ec \u0111i\u1ec3m c\u00f3 b\u1ecb ch\u1eb7n tr\u1ea7n kh\u00f4ng?<\/b> College Board kh\u00f4ng c\u00f4ng b\u1ed1 b\u1ea3ng \u0111i\u1ec3m tr\u1ea7n chung cho m\u1ecdi \u0111\u1ec1 thi. Nh\u00e1nh module d\u1ec5 h\u01a1n v\u1eabn \u0111o \u0111\u01b0\u1ee3c m\u1ed9t d\u1ea3i n\u0103ng l\u1ef1c \u0111\u00e1ng k\u1ec3, v\u00e0 c\u00e1c con s\u1ed1 \u0111i\u1ec3m tr\u1ea7n tr\u00ean m\u1ea1ng ch\u1ec9 n\u00ean xem l\u00e0 \u01b0\u1edbc t\u00ednh tham kh\u1ea3o.<\/span><\/p>\n

L\u00e0m sao bi\u1ebft m\u00ecnh \u0111\u00e3 \u0111\u01b0\u1ee3c x\u1ebfp v\u00e0o module kh\u00f3 hay d\u1ec5?<\/b> Kh\u00f4ng c\u00f3 c\u00e1ch \u0111\u00e1ng tin c\u1eady \u0111\u1ec3 bi\u1ebft trong l\u00fac l\u00e0m b\u00e0i, v\u00ec c\u1ea3 hai nh\u00e1nh \u0111\u1ec1u tr\u1ed9n c\u00e1c c\u00e2u \u1edf nhi\u1ec1u m\u1ee9c \u0111\u1ed9 kh\u00f3. N\u00ean t\u1eadp trung l\u00e0m t\u1ed1t t\u1eebng c\u00e2u thay v\u00ec c\u1ed1 \u0111o\u00e1n nh\u00e1nh c\u1ee7a m\u00ecnh.<\/span><\/p>\n

C\u00e2u h\u1ecfi th\u1eed nghi\u1ec7m l\u00e0 g\u00ec v\u00e0 c\u00f3 nh\u1eadn ra \u0111\u01b0\u1ee3c kh\u00f4ng?<\/b> M\u1ed7i module c\u00f3 hai c\u00e2u th\u1eed nghi\u1ec7m kh\u00f4ng t\u00ednh \u0111i\u1ec3m, d\u00f9ng \u0111\u1ec3 thu th\u1eadp d\u1eef li\u1ec7u cho \u0111\u1ec1 thi t\u01b0\u01a1ng lai. Ch\u00fang kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e1nh d\u1ea5u n\u00ean th\u00ed sinh kh\u00f4ng th\u1ec3 nh\u1eadn ra, v\u00e0 n\u00ean coi m\u1ecdi c\u00e2u \u0111\u1ec1u \u0111\u01b0\u1ee3c t\u00ednh \u0111i\u1ec3m.<\/span><\/p>\n

Tr\u1ea3 l\u1eddi sai c\u00f3 b\u1ecb tr\u1eeb \u0111i\u1ec3m kh\u00f4ng v\u00e0 c\u00f3 n\u00ean \u0111o\u00e1n kh\u00f4ng?<\/b> Kh\u00f4ng b\u1ecb tr\u1eeb \u0111i\u1ec3m. College Board khuy\u1ebfn ngh\u1ecb n\u00ean \u0111o\u00e1n thay v\u00ec b\u1ecf tr\u1ed1ng, \u0111\u1eb7c bi\u1ec7t sau khi lo\u1ea1i tr\u1eeb \u0111\u01b0\u1ee3c m\u1ed9t ho\u1eb7c hai ph\u01b0\u01a1ng \u00e1n.<\/span><\/p>\n

\u0110i\u1ec3m Digital SAT c\u00f3 t\u01b0\u01a1ng \u0111\u01b0\u01a1ng v\u1edbi \u0111i\u1ec3m SAT gi\u1ea5y kh\u00f4ng?<\/b> Theo College Board, hai nghi\u00ean c\u1ee9u \u0111\u1ed1i chi\u1ebfu cho th\u1ea5y \u0111i\u1ec3m Digital SAT c\u00f3 th\u1ec3 so s\u00e1nh v\u1edbi \u0111i\u1ec3m SAT gi\u1ea5y, v\u00e0 m\u1ed9t \u0111i\u1ec3m s\u1ed1 nh\u01b0 1050 mang c\u00f9ng \u00fd ngh\u0129a \u1edf c\u1ea3 hai h\u00ecnh th\u1ee9c.<\/span><\/p>\n

C\u00f3 n\u00ean c\u1ed1 t\u00ecnh l\u00e0m sai Module 1 \u0111\u1ec3 \u0111\u01b0\u1ee3c module d\u1ec5 h\u01a1n kh\u00f4ng?<\/b> Kh\u00f4ng. Module 1 \u0111\u00f3ng g\u00f3p tr\u1ef1c ti\u1ebfp v\u00e0o \u0111i\u1ec3m s\u1ed1 c\u1ee7a ph\u1ea7n thi, n\u00ean l\u00e0m k\u00e9m Module 1 ch\u1ec9 l\u00e0m gi\u1ea3m b\u1eb1ng ch\u1ee9ng v\u1ec1 n\u0103ng l\u1ef1c c\u1ee7a b\u1ea1n.<\/span><\/p>\n

C\u00e1ch \u00f4n luy\u1ec7n hi\u1ec7u qu\u1ea3 nh\u1ea5t khi hi\u1ec3u c\u01a1 ch\u1ebf ch\u1ea5m \u0111i\u1ec3m n\u00e0y l\u00e0 g\u00ec?<\/b> C\u1ee7ng c\u1ed1 n\u0103ng l\u1ef1c th\u1ef1c ch\u1ea5t \u1edf m\u1ecdi m\u1ee9c \u0111\u1ed9 kh\u00f3, l\u00e0m ch\u00ednh x\u00e1c ngay t\u1eeb Module 1, tr\u1ea3 l\u1eddi m\u1ecdi c\u00e2u h\u1ecfi, ph\u00e2n t\u00edch k\u1ef9 l\u1ed7i sai sau m\u1ed7i b\u00e0i thi th\u1eed v\u00e0 luy\u1ec7n trong m\u00f4i tr\u01b0\u1eddng m\u00f4 ph\u1ecfng \u0111\u00fang c\u1ea5u tr\u00fac hai module.<\/span><\/p>\n

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\n 5\/5 - (387 votes) <\/div>\n <\/div>","protected":false},"excerpt":{"rendered":"

\u0110i\u1ec3m s\u1ed1 Digital SAT kh\u00f4ng \u0111\u01a1n gi\u1ea3n l\u00e0 “\u0111\u00fang bao nhi\u00eau c\u00e2u th\u00ec \u0111\u01b0\u1ee3c b\u1ea5y nhi\u00eau \u0111i\u1ec3m”. Hai th\u00ed sinh c\u00f9ng tr\u1ea3 l\u1eddi \u0111\u00fang m\u1ed9t s\u1ed1 l\u01b0\u1ee3ng c\u00e2u nh\u01b0 nhau trong m\u1ed9t ph\u1ea7n thi v\u1eabn c\u00f3 th\u1ec3 nh\u1eadn hai m\u1ee9c \u0111i\u1ec3m kh\u00e1c nhau, v\u00e0 ch\u00ednh College Board c\u0169ng x\u00e1c nh\u1eadn \u0111i\u1ec1u n\u00e0y tr\u00ean trang gi\u1ea3i […]","protected":false},"author":33,"featured_media":34114,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[95],"tags":[229,346,347],"class_list":["post-34112","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bai-thi-chuan-hoa","tag-bai-thi-atc-en","tag-bai-thi-sat","tag-digital-sat"],"acf":[],"_links":{"self":[{"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/posts\/34112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/users\/33"}],"replies":[{"embeddable":true,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/comments?post=34112"}],"version-history":[{"count":2,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/posts\/34112\/revisions"}],"predecessor-version":[{"id":34118,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/posts\/34112\/revisions\/34118"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/media\/34114"}],"wp:attachment":[{"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/media?parent=34112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/categories?post=34112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/etest.edu.vn\/en\/wp-json\/wp\/v2\/tags?post=34112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}