Aim : general purpose of an investigation, what you are tying to achieve in the investigation.
Hypothesis : a precise, testable statement or preditction about the expected outcome of an investigation.
Null Hypothesis : a prediction that states that results are due to chance and are not significant in terms of supporting the idea being investigated. e.g. there is no evidence that there is a difference between groups in the amount they remember.
Research Hypothesis : a prediction that states that results are not due to chance and that they are significant in terms of supporting the idea being investigated. e.g there is evidence that there is a difference between groups in the amount they remember.
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