Psychological Tests and Test Interpretation Tools

W. Joel Schneider, Ph.D.

Software

I have created a suite of over 25 repeatable tests. For now, none of them have been normed but they can be used for cognitive rehabilitation and qualitative assessment. The suite includes tests of attention, long-term and working memory, reasoning, reaction time, executive functions and visual-spatial processing.

Excel Test Scoring and Interpretation Tools

Test Table Maker (Creates tables for your reports. Video Tutorial)

Generalized Relative Proficiency Index (Extends the usefulness of the RPI from the Woodcock family of test batteries)

Difference Score Replication Predictor (Calculates the probability of replicating difference scores larger than a specific criterion)

Base Rates (Calculates positive and negative predictive power and other useful statistics given a test's specificity and sensitivity)

Statistical Tools

Area Under the Normal Curve (Graphic tool that calculates the proportion under a normal curve)

Understanding Statistical Power (Basic tool for calculating statistical power for known distributions. Has an interactive graph of the null and alternative distributions.)

Z-test (Conducts a z-test. Has an interactive graph of the normal distribution)

1-Sample t-test (Conducts a 1-sample t-test. Has an interactive graph of the t distribution.)

Basic Statistical Tables and Tools (F, t, and Z-Score tables, Area under normal curve, Z-test, 1-sample t-test)

Questions and requests can be directed to: wjschne@ilstu.edu