The three kinds of variable
The three kinds of variable
An experiment investigates whether changing one factor affects an outcome. The independent variable is deliberately changed, while the dependent variable is measured.
Step-by-step lessons on Edexcel GCSE Psychology 11.1.1 Identify variables. Each one builds up to exam-style questions. Start with the more concrete compulsory topics like memory and development before tackling evaluation-heavy optional topics and research methods.