(RM) Reliability and Validity Flashcards Preview

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Flashcards in (RM) Reliability and Validity Deck (11)
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1
Q

What is the meaning of reliability?

A

Refers to the consistency of research

2
Q

What is ‘internal reliability’?

A

Measures the extent of which a test or procedure is consistent within itsef

3
Q

What is ‘external reliability’?

A

Measures the consistency from one occasion to the other

4
Q

What are the two ways to measure internal reliability?

A
  • Inter-observer Reliability
    Researchers should produce similar test results, or similar observations to each other
  • Split-half Method
    Compare participants’ performance on 2 halves of the test
5
Q

What are the two ways to measure external reliability?

A
  • Test-Retest
    Take the same test on different occasions
  • Replication
    Replicate the same experiment, but with different participants
6
Q

What is meant by validity?

A

Refers to whether it is testing what it claims to be testing

7
Q

What is ‘internal validity’?

A

The tool is measuring what it is intending to measure

8
Q

What is ‘external validity’?

A

Findings can be generalised beyond the context of the research situation

9
Q

What are the two ways to measure internal validity?

A
  • Face Validity
    Does our measuring tool appear to be doing what it should?
  • Concurrent Validity
    New measure test scores are correlated from those from the first established valid test
10
Q

What are the two ways to measure external validity?

A
  • Temporal Validity
    Do our findings endure over time or are they era-dependent?
  • Replication
    Doing experiment again with different participants and a more real-life setting
11
Q

What are the two ways to improve validity when conducting an experiment?

A
  • Single-Blind Technique
    Make sure the participants don’t know the aim of the experiment
  • Double-Blind Technique
    Hire an experimenter to do the experiment for you, without knowing the aim, thus participants and the experimenter do not know the aim of the experiment