Standard Error of Measurement and Confidence Intervals (PDE: Module 10)
This module examines the role of standard error of measurement in standardized language and psycho-educational tests.
Appropriate Assessment Procedures- Part 2 (PDE: Module 13)
This module examines different sources of bias that are present in commonly used standardized language tests.
(McCauley & Swisher, 1984) Psychometric Review of Language and Articulation Tests for Preschool Children
This was one of the first of many articles publishing research demonstrating the severe limitations of using commercially available child language tests when assessing children for speech and language disability.
Understanding Assessment: Understanding the Normal Distribution
A normal distribution, also called a bell curve, occurs when variables (i.e., test scores) plotted on a graph fall into a regular distribution around a single mean. In a normal distribution, about 96% of the scores will fall within 2 standard deviations of the mean.
