˚ ❀ . ˚ ✦.Psyc Evaluation terms.✦˚ . ❀˚˚

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Internal validity

The extent to which you’re able to say that no other variables, apart from the independent variable caused a change in the dependant variable

External validity

How aplicable the results of the study are to other contexts, The extent to which the results of a study can be generalized

Temporal Validity

The validity of the findings in relation to the progression of time

Demand characteristics

If participants form an interpretation of the experiment's purpose and consciously or unconsciously change their behaviour to fit that interpretation, whether they wish to help or not, this makes results unreliable since its not measuring realistic responses.

Reliability

The extent to which the experiment or measuring procedure yields the same results each time

Biases

• Sample bias

• Gender

• Culture

• Age