Inferential testing - Research Methods [A-Level Psychology]

Follow me here →   / psychboost   🎯 I'm now making A-Level Psychology videos on TikTok!! At least one new video every single day until the 2026 exams! 🚀 If Psych Boost is helping in your studies, and you want additional resources, check out my pateron!   / psychboost​​   In this video 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. Created for the requirements of AQA A level psychology. However, information should be useful for students of other psychology courses. See www.psychboost.com for resources 0:00 Intro 1:00 What are inferential statistics? 2:20 Deciding which statistical test to use 6:20 Using the stats test question 8:25 How to answer the stats question 12:18 Working out degrees of freedom 12:50 Calculating the Sign test 15:44 Outro