Psychometric Theory Nunnally Pdf (ESSENTIAL 2027)

: Covers item analysis, factor analysis, and various techniques for test construction. Scaling & Models

Unlike his predecessors who focused on abstract mathematical proofs, Nunnally wrote for the applied researcher. He believed that if a concept could not be measured, it could not be studied scientifically. His goal was to demystify complex statistical procedures (like factor analysis and generalizability theory) so that a doctoral student with a moderate statistics background could build a valid scale. psychometric theory nunnally pdf