During an experiment involving juvenile offenders at an alternative school, four of the participants are suspended from school, thus are no longer available to the researcher. This internal threat to validity is called:
A) mortality.
B) attrition.
C) history.
D) none, it is not a threat at all to the experiment.
Correct Answer:
Verified
Q16: An experiment has two experimental groups and
Q17: A measure of the dependent variable after
Q18: All experiments have the following features: (189-190)
A)
Q19: The one-group, no pre-test experimental design model
Q20: The one-group, no pre-test experimental design model
Q22: During an experiment on police officer fitness,
Q23: The two-group pre-test-post-test experimental design model includes
Q24: Change in a research subject due to
Q25: The group that is exposed to the
Q26: The independent variable in an experimental design,
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