Practice question · Select all that apply
Select every statement that is TRUE.
Hints
- Only one option is false; find the claim that consistency guarantees accuracy.
- The always-heavy scale shows consistency without accuracy.
Show the answer
- A. External validity concerns whether findings generalize beyond the sample.
- B. Validity requires reliability, but not the reverse.
- C. A scale whose items pull in different directions is measuring more than one thing.
- D. A measure can be highly reliable without being valid.
Why
Reliable-without-valid, validity-requires-reliability, internal consistency, and external validity are all true. A perfectly consistent measure need NOT be accurate - the one false option is the reliability-implies-validity error.
Practise Reliability and Validity
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