AQA AS Psychology A - Research Methods

Research methods key terms :)
all from the book :) 

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Hypothesis

Hypothesis

 

 

A precise, testable statement about the expected outcome of an investigation.

 

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Aim

Aim

 

 

A general statement about the purpose of the investigation. 

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Experiment

Experiment

A research investigation in which one specific variable is manipulated to observe its effect on another specific variable, while keeping all other variables controlled. In a true experiment participants are randomly allocated to conditions or take part in all. 

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Variable

Variable

 

A measureable characteristic or value that can differ from one person to another or have multiple values. 

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Experimental Hypothesis

Experimental Hypothesis

 

 

A hypothesis used in the context of an experiment.

 

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Alternative Hypothesis

Alternative Hypothesis

 

 

Any hypothesis that is not the null.

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Correlational Study

Correlational Study

An investigation into the possible association of two variables.


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Operationalising

Operationalising

 

 

The process of devising a way of measuring a variable. 

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Internal Validity

Internal Validity

 

A research study or experiment has internal validity if the outcome is the result of the variables that are manipulated in the study.

 

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External Validity

External Validity

 

The extent to which findings can be generalised to settings other than the research setting. 

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Comments

nikita

good

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