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All 10 Flashcards — Validity
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Question
What is validity?
Answer
Whether a measure or study actually captures what it claims to measure.
Question
What is construct validity?
Answer
Whether the measure captures the actual concept, not something else.
Question
What is internal validity?
Answer
Whether an effect is really due to the manipulation, not a confound.
Question
What is ecological validity?
Answer
Whether findings generalise to real-life settings, not just the lab.
Question
Reliability vs validity?
Answer
Reliability = consistent; validity = measuring the right thing.
Question
Example of low construct validity?
Answer
Measuring 'intelligence' by mouse-clicking speed — that captures reaction time, not intelligence.
Question
What is the internal–ecological trade-off?
Answer
Tight lab control aids internal validity but can make the setting artificial, hurting ecological validity.
Question
How do you threaten internal validity?
Answer
A confound — another variable that could explain the effect (e.g. no control group).
Question
Can a study be reliable but not valid?
Answer
Yes — it can give consistent results while measuring the wrong thing.
Question
Which concept is this?
Answer
Measurement — one of the six core concepts.
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Topic 1.4 hub
Measurement
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