Practice question · Multiple choice
The MMPI includes validity scales designed to detect faking; the Rorschach has no such thing. Why does that difference follow from the kind of test each one is, rather than being an oversight?
Hints
- How does a validity scale actually work? What does it compare?
- Ask what the equivalent would look like for a free-form response to an inkblot.
Show the answer
D. Because a validity scale needs items with fixed response options.
Why
Validity scales are a statistical device that depends on fixed items, the MMPI's L, F and K work by spotting response patterns rare in honest respondents, which is computable only when everyone answered the same items. A free-form inkblot description has no norm to check against, so the absence is structural rather than an oversight.
Practise Personality Assessment
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