Aims and Hypotheses

Aims and Hypothesis!

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Aims and Hypotheses

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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One -tailed Hypothesis: is a directional hypothesis. e.g instead of saying there will be a difference between groups in the amount they remember, you predict which group will remember most.

Two-tailed Hypothesis: is one in which the direction of results is not predicted. e.g. you may predict a difference between groups but have no idea which way the difference will fall.

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