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Investigator effects are where a researcher (consciously or unconsciously) acts in a way to support their prediction. This can be a particular problem when observing events that can be interpreted in more than one way. (For example, one researcher might interpret children fighting as an act of violence, while another might interpret this as rough and tumble play).

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    Fight or Flight: AQA A Level Psychology Assessment Mat

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    AQA A-Level Psychology Research Methods Workbook (Vol 1)

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    Research Methods: AQA A Level Psychology Topic Companion

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