Types of Validity Flashcards

1
Q

What does validity mean?

A

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

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2
Q

What are the two broad categories of validity?

A
  • Internal validity

- External validity

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3
Q

What does mundane realism refer to?

A

How a study mirrors the real world

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4
Q

What are two types of external validity?

A
  • Population validity
  • Temporal validity
  • Ecological validity
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5
Q

What is a type of internal validity?

A

Face validity

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6
Q

What is internal validity?

A

What goes on inside a study

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7
Q

What is internal validity concerned with?

A
  • IV produced he change in the DV
  • Researcher tested what was meant to be tested
  • Study possessed mundane realism
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8
Q

How do you obtain high internal validity?

A
  • Design the research carefully
  • Control extraneous variable
  • Testing what you intended to test
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9
Q

What is external validity?

A
  • Affected by internal validity

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

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10
Q

What is ecological validity?

A

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

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11
Q

What is population validity?

A

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

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12
Q

What is face validity?

A

Whether a test measures what is supposed to measure

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13
Q

How do you assess validity?

A

Using concurrent validity

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14
Q

What is concurrent validity?

A

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

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15
Q

How do you improve the validity of experimental research?

A
  • Control group (test whether changes are dependent on IV)
  • Standardise procedure (reduces participants reactivity and investigator effect)
  • Use single or double blind research
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16
Q

How do you improve the validity of questionnaires?

A

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

17
Q

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

A

Too broad, overlapping or ambiguous

18
Q

Why does the qualitative methods improve the validity?

A

-High ecological validity, less interpretation of results

19
Q

How is validity enhanced?

A

By triangulation

20
Q

What is triangulation?

A

Use of number of different sources of evidence