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Scientific Processes

Validity

  • 2 things to know
  • Paper 2

Overview

Internal and external validity, the distinction between face and concurrent validity, and the kinds of generalisation external validity covers.

What you need to know

Answer each one before you reveal it.

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Key term

Distinguish face validity from concurrent validity.

Key term

What two kinds of generalisation fall under external validity?

Questions from this subtopic

Each one with the model answer underneath.

  1. 1

    What is face validity?

    Model answer

    The extent to which a test appears to measure what it claims to measure based on superficial inspection of the items.

  2. 2

    How is concurrent validity established?

    Model answer

    By comparing a new measure with an existing, well-established measure of the same construct and finding a strong positive correlation between them.

  3. 3

    Define ecological validity.

    Model answer

    The extent to which findings from a study can be generalised to real-life settings and behaviours.

  4. 4

    What is temporal validity?

    Model answer

    The extent to which findings from a study can be generalised to other time periods.

  5. 5

    How does face validity differ from concurrent validity in terms of what each involves?

    Model answer

    Face validity involves subjective judgement of whether a test looks appropriate, whereas concurrent validity requires statistical comparison with an established measure.

  6. 6

    What is the key distinction between ecological validity and temporal validity regarding what they concern?

    Model answer

    Ecological validity concerns generalisation across settings and situations, whereas temporal validity concerns generalisation across different historical periods.

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