W. Joel Schneider

Overture Redux

The original title of this blog (Assessing Psyche, Engaging Gauss, Seeking Sophia) was more of an aspiration than a description. To keep things simple, going forward the…

W. Joel Schneider

The RESCA-E Subtests Are Thoughtfully Designed and Highly Refined Measures of CHC Constructs

A Review of the Receptive, Expressive & Social Communication Assessment–Elementary

Conflict of Interest Statement: ATP Assessments, the publisher of the RESCA-E, commissioned me to write a descriptive account of the likely relations among the RESCA-E…

W. Joel Schneider

Reliability coefficients are for squares

Confidence interval widths tell it to you straight.

psychometrics

reliability

confidence intervals

Visualizing the relationship between reliability and confidence interval widths

W. Joel Schneider

A Gentle, Non-Technical Introduction to Factor Analysis

statistics

Discovering Underlying Dimensions in Data

W. Joel Schneider

Visualizing Covariance

statistics

A visualization of covariance

W. Joel Schneider