AQA A Level Psychology Lecture 41 - Inferential Statistics

Powerpoint lecture covering the following in a modern, concise format:

Specification Point 4.2.3.3 - Inferential Testing.

Introduction to statistical testing; the sign test. When to use the sign test; calculation of the sign test.

Probability and significance: use of statistical tables and critical values in interpretation of significance; Type I and Type II errors.

Factors affecting the choice of statistical test, including level of measurement and experimental design.

When to use the following tests: Spearman’s rho, Pearson’s r, Wilcoxon, Mann-Whitney, related t-test, unrelated t-test and Chi-Squared test.

Complete set of Chapter 7 Lectures are available.