Name the four types of validity that are important in experimental research.
What will be an ideal response?
Ques. 2What are the three essential requirements for an experiment?
What will be an ideal response?
Ques. 3Which of the following measures would be most susceptible to reactive effect?
a. Rating scale
b. Aptitude test
c. Attitude scale
d. Teacher-made achievement test
e. Standardized achievement test
Ques. 4An experimenter was interested in the effect of caffeine on a performance test. Three equivalent groups consumed high, moderate, or low amounts of caffeine before taking the performance test. This experiment had
a. three independent variables.
b. one independent variable with three levels.
c. three dependent variables.
d. one dependent variable with three levels.
Ques. 5Refer to Exhibit 10-12. Which is the comparison group?
a.
aerobic exercises five days per week
c.
no aerobic exercise.
b.
aerobic exercises three days per week
Ques. 6Refer to Exhibit 10-12. Which is the true control group?
a.
aerobic exercises five days per week
c.
no aerobic exercise
b.
aerobic exercises three days per week
Ques. 7Refer to Exhibit 10-11. Are the findings of this study a result of the experimental treatment?
a. internal validity
c. construct validity
b. external validity.
d. statistical conclusion validity
Ques. 8Refer to Exhibit 10-11. Was the experimenter correct in reporting that the treatment had no significant effect? Would a more powerful test have lead to a different conclusion?
a. internal validity
c. construct validity
b. external validity.
d. statistical conclusion validity
Ques. 9The relationship between internal and external validity in research can best be described as
a. If an experiment lacks external validity, it cannot have internal validity.
b. If an experiment lacks internal validity, it cannot have external validity.
c. Internal and external validity are independent of each other.
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