Question 23. Which of the following information should be provided in a

23. Which of the following information should be provided in an informed consent form for any
study involving human participants?
a. the findings of the study
b. the number of participants the study plans to use
c. the procedures involved in the study
d. the names of other participants

31. Which of the following statements is false?
a. Validity refers to the results of a test not the test itself.
b. Validity progresses from low to high degrees rather than all or none.
c. A test can lack validity and still be a reliable measure.
d. A test can lack reliability and still be a valid measure.

37. Dr. Brown finds that results from different methods used to assess the same trait are highly
correlated and results from different methods used to assess different traits are not
significantly correlated. These results demonstrate which two types of validity respectively?
a. predictive and concurrent
b. concurrent and predictive
c. discriminant and convergent
d. convergent and discriminant

39. Which assessment technique is used in field work?
a. Likert scaling
b. Thurstone scaling
c. observation
d. item analysis

40. Which of the following is NOT a component of a multiple choice question?
a. the stem
b. the root
c. distracters
d. alternatives

44. A good cover letter for a survey questionnaire has all but one of the following characteristics
listed below. Which is NOT a characteristic of a good cover letter?
a. The initial questions are relatively simple, nonthreatening and easy-to-answer.
b. It is written on official letterhead.
c. It promises confidentiality.
d. It clearly states the purpose of the questionnaire and the importance of the study.

45. Which measure would be used to describe how far a test score is from the average test
score?
a. mean
b. mode
c. median
d. standard deviation

46. In a set of scores with a mean of 50 and a standard deviation of 5, what raw score is
represented by a z-score of 1.00?
a. 30
b. 55
c. 60
d. 20

50. You are interviewing classmates to find out their political party affiliation. When you pick
the measure of central tendency to use in presenting your results, which should you choose?
a. range
b. mode
c. median
d. mean

52. The minimum or maximum value that one would expect the test statistic to yield if the null
hypothesis is true is an example of which of the following?
a. critical value
b. F value
c. t-test score
d. sampling mean

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