This resource builds students’ confidence in understanding, identifying, and writing hypotheses across experimental and non-experimental research methods. Learners will explore the differences between experimental and alternative hypotheses, understand when to use directional and non-directional hypotheses, and practice writing null hypotheses using correct exam terminology. Through clear explanations, worked examples, and exam-style practice, students learn how to structure hypotheses accurately, use statistical language appropriately (such as the importance of the term significant), and avoid common errors such as inappropriate causal language. This lesson is ideal for GCSE and A-level students aiming to improve precision, clarity, and exam technique.