This book enables practitioners to apply statistics effectively to the development and use of language assessments. The Workbook and CD contain datasets from actual language assessments and data analysis exercises.

Table of Contents

1 Basic concepts and terms 2 Describing test scores 3 Investigating relationships among different sets of test scores 4 Analyzing test tasks 5 Investigating reliability for norm-referenced tests 6 Investigating reliability for criterion-referenced tests 7 Stating hypotheses and making statistical inferences 8 Tests of statistical significance 9 Investigating validity 10 Reporting and interpreting test scores