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Flip to reveal answersWhat does it take to show a behaviour has changed?
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All 12 Flashcards — Measuring change
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Question
What does it take to show a behaviour has changed?
Answer
Measuring the same behaviour at more than one time point and comparing.
Question
What is a before-and-after design?
Answer
Measure a behaviour, do something, then measure again to see if it shifted.
Question
What is a repeated-measures design?
Answer
Testing the same people several times so each person is their own comparison.
Question
What is a longitudinal study?
Answer
Following the same people over months or years, measuring repeatedly.
Question
What is a practice effect?
Answer
Doing better on a test because you have taken it before, not because anything has really changed.
Question
Why add a control group when measuring change?
Answer
It shows what would have changed anyway: the season, growing older, events that affect everyone.
Question
What is regression to the mean?
Answer
Extreme scores drifting back toward average on a retest, with no real change.
Question
Three checks before trusting a change?
Answer
Consistent (reliable) measure, a comparison group, and a change big enough to matter.
Question
Why is a single measurement not enough?
Answer
Change can only be shown by comparing the same behaviour across time.
Question
What is a cross-sectional study?
Answer
Different groups are compared at one time. It shows a difference between groups, not a change.
Question
What is a follow-up?
Answer
A measurement taken some time after a treatment ends, to see whether the change has lasted.
Question
What is prevalence?
Answer
How common a problem is in a population. If a prevention campaign works, prevalence falls.
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Topic 1.3 hub
Change
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