Ecological validity can be affected by the timing and length of the treatment.
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Q34: A convenience sample attempts to select participants
Q35: High experimental mortality for certain groups and
Q36: A large sample size will help detect
Q37: It is possible for the theoretical and
Q38: There is medium population validity when the
Q40: Questionnaires and surveys are generally considered to
Q41: Describe the differences between the theoretical or
Q42: When would you use nonprobability sampling?
Q43: What aspects can lead to an unrepresentative
Q44: In your own words, define external validity.
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