1. We are designing a new instrument to measure happiness. If we ask participant
ID: 3223108 • Letter: 1
Question
1. We are designing a new instrument to measure happiness. If we ask participants to complete the same instrument of happiness over several days, we are testing this new instruments' ____.
external validity
interrater reliability
predictive validity
test-retest reliability
2. For a scale that is measuring eating disorder likelihood to have good _____, it needs to be able to differentiate between those who will get eating disorders versus those who would not.
external validity
interrater reliability
predictive validity
test-retest reliability
3. Reliability means:
accuracy.
structure.
validity.
consistency.
Explanation / Answer
1. test-retest validity because they are going to perform for several times.
2. external validity since after comaprison they can reveal the result more effectively
3. both consistency and validity
The ability of an apparatus, machine, or system to consistently perform its intended or required function or mission, on demand and without degradation or failure. Manufacturing: The probability of failure-free performance over an item's useful life, or a specified timeframe, under specified environmental and duty-cycle conditions.
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