Multiple Choice
A researcher is evaluating the changes in performance that occur during a six-week training program. Participants are observed at the beginning and at the end of the program and the researcher rates each individual's level of performance. When the researcher's standards for rating performance change from the first observation to the last, then the internal validity of the study is threatened by ____.
A) history
B) instrumentation
C) maturation
D) statistical regression
Correct Answer:
Verified
Correct Answer:
Verified
Q1: Counterbalancing effectively eliminates order effects.
Q2: What does counterbalancing involve?<br>A) Matching the treatment
Q3: The tendency for extremely high scores on
Q5: The tendency for individuals who have extreme
Q6: When one treatment condition has a lasting
Q7: Outline the major advantages and disadvantages of
Q8: For an experiment comparing two treatment conditions,
Q9: A matched-subjects design attempts to eliminate the
Q10: The most appropriate hypothesis test for a
Q11: During the first treatment condition of a