Problem 4E

Row reduce the matrices in Exercises 3 and 4 to reduced echelon form. Circle the pivot positions in the final matrix and in the original matrix, and list the pivot columns.

Principles of Psych Research Week 6 Validity Content-Related o Construct Divergent and Convergent Criterion-Related (see week 5 notes) Criterion- Related Validity Refers to the degree to which a measurement can accurately predict specific criterion variables. o Important because it can tell us how accurately a measurement can predict scores Predictive Validity o Refers to how well a measure predicts your scores on similar measures in the future Also pertains to how well a measure predicts future outcomes Ex: how well does your high school GPA predict your college GPA…Your success in middle age