PSYC 107 Lecture Notes - Lecture 23: Classical Test Theory, Psychometrics, Army Alpha

• School: Texas A&M University
• Department: Psychology
• Course: PSYC 107
• Professor: Stacey Rieck

Document Summary

Aptitude tests (cid:373)easu(cid:396)es (cid:396)eadi(cid:374)ess to lea(cid:396)(cid:374) a(cid:374)d o(cid:374)e"s (cid:272)og(cid:374)itive a(cid:271)ility: potential for entering college, Achievement tests measure what a person has accomplished: standardized tests. Intelligence tests measure iq objectively, in a standardized manner. Charles spearman: g-factor theory: cognitive abilities tests positively correlated, g: general intelligence, general cognitive ability s: special intelligence. Multiple-factor theory: modifications: g divided into 2 types, fluid intelligence flexible thought, processing speed, ability to organize information, crystallized intelligence (cid:373)e(cid:373)o(cid:396)izatio(cid:374), does(cid:374)"t (cid:396)e(cid:395)ui(cid:396)e you to (cid:373)a(cid:374)ipulate i(cid:374)fo. Intelligence hierarchy general, broad and narrow intelligence. Howard gardner : 8 types of intelligence (semi-independent, people have (cid:373)ultiple (cid:862)i(cid:374)tellige(cid:374)(cid:272)es(cid:863) Psychometrics theory and technique behind measurement: construction and technique behind measurement, theoretical approaches to measurement. Item-response theory focus on specific items: probability that someone of ability x will answer correctly, does not assume each item is equally difficult, different questions have different difficulties, use when grading exams, recommended. Lower bound guessing (25% on multiple choice)