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AQA Psychology - Research Methods - Types of Validity

Psychology20 CardsCreated about 1 month ago

Validity is the extent to which a test or study measures what it is intended to measure. It reflects the accuracy and truthfulness of the results and conclusions drawn from the research.

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What does validity mean?

Extent to which a test measures what it is supposed to measure

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Key Terms

Term
Definition

What does validity mean?

Extent to which a test measures what it is supposed to measure

What are the two broad categories of validity?

  • Internal validity

- External validity

What does mundane realism refer to?

How a study mirrors the real world

What are two types of external validity?

  • Population validity

  • Temporal validity

  • Ecological validity

What is a type of internal validity?

Face validity

What is internal validity?

What goes on inside a study

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AQA Psychology - Research Methods - Types of Validity
TermDefinition

What does validity mean?

Extent to which a test measures what it is supposed to measure

What are the two broad categories of validity?

  • Internal validity

- External validity

What does mundane realism refer to?

How a study mirrors the real world

What are two types of external validity?

  • Population validity

  • Temporal validity

  • Ecological validity

What is a type of internal validity?

Face validity

What is internal validity?

What goes on inside a study

What is internal validity concerned with?

  • IV produced he change in the DV

  • Researcher tested what was meant to be tested

  • Study possessed mundane realism

How do you obtain high internal validity?

  • Design the research carefully

  • Control extraneous variable

  • Testing what you intended to test

What is external validity?

  • Affected by internal validity

- The ability to generalise the results of a study to different places or people

What is ecological validity?

Ability to generalise the results of a study to different place or setting

What is population validity?

Ability to generalise results of a study to different people or population

What is face validity?

Whether a test measures what is supposed to measure

How do you assess validity?

Using concurrent validity

What is concurrent validity?

How closely matched the results are to another well established test (Must exceed +0.8)

How do you improve the validity of experimental research?

  • Control group (test whether changes are dependent on IV)

  • Standardise procedure (reduces participants reactivity and investigator effect)

  • Use single or double blind research

How do you improve the validity of questionnaires?

-Incorporate a lie scale to assess consistency of respondents response (controls social desirability bias)

What are bad about behavioural categories and the validity of questionnaires?

Too broad, overlapping or ambiguous

Why does the qualitative methods improve the validity?

-High ecological validity, less interpretation of results

How is validity enhanced?

By triangulation

What is triangulation?

Use of number of different sources of evidence