Communicating complicated concepts straightforwardly, the authors answer questions like:
- What does 'validity' mean?
- What does it mean to 'validate'?
- How many different kinds of validity are there?
- When does validation begin and end?
- Is reliability a part of validity, or distinct from it?
This book will be of interest to anyone with a professional or academic interest in evaluating the quality of educational or psychological assessments, measurements and diagnoses.