Introduction to Classical and Modern Test Theory

administered answer appropriate calculated Chapter classical test theory computed considered consistency construct content validation criterion-referenced tests curve cut score cutoff score D-study decision defined denoted domain score equal Equation error of measurement examinee's examinees example facet factor loadings formula generalizability coefficient generalizability theory group of examinees illustrate indicate interpretation interval item analysis item bias item correctly item difficulty item response theory item scores latent trait score mean methods norm normal distribution number of items observed score variance obtained parameters percentile rank performance point biserial correlation population possible predicted predictor probability problem procedure random raters raw score relationship reliability coefficient researcher sample scale scatterplot score distribution selection standard deviation standard error statistical subpopulations subtests Table test developer test forms test theory test user tion total score trait theory true score universe score validity coefficient values variable X₁ z-score σχ