NUR 256 PSYCH EXAM 3 GALEN ACTUAL TEST
SCRIPT 2026 COMPLETE QUESTIONS AND
ANSWERS GRADED A+
◉ Suppose a class is known for being extremely difficult, and the
distribution is positively skewed. The average grade in the class is 65
with a standard deviation of 5 points. At least what percentage of
grades in the class are between 50 and 80?
A. Approximately 75%
B. Approximately 89%
C. Approximately 68%
D. Approximately 99%. Answer: B
◉ How would you measure test-retest reliability?
A. Calculate the standard error of measurement
B. Use a t-test to examine the mean difference between scores on
two testing occasions
C. Correlate individual's scores on two occasions of a test
D. Calculate Cronbach's alpha. Answer: C
◉ If Cronbach's alpha of a scale is .60
A. The test is too easy
,B. The test is too difficult
C. You may want to remove items for redundancy
D. The reliability of the scale is inadequate (i.e., not acceptable).
Answer: D
◉ SPSS can be used to do all of the following EXCEPT
A. Help inform decisions about which scale items to keep or remove
B. Display the distribution of scores on a scale
C. Help write good scale items
D. Provide Cronbach's alpha of a scale. Answer: C
◉ For a good survey item, the item-total correlation is...
A. High if the survey is standardized
B. Low if the survey is homogeneous
C. High if the survey is homogenous
D. Low if the survey is standardized. Answer: C
◉ If you score a 5 out of 5 on this quiz, you may conclude that you
are a genius. That would be a(n)...
A. Rational inference
B. Irrational inference
C. Rational decision
, D. Irrational decision. Answer: B
◉ Validity is about?
A. The consistency of scores on alternate forms of a test
B. The similarity of individuals' performance on items within a test
C. The extent to which graders agree on an individuals' test score
D. The quality of inferences individuals' draw from a test score.
Answer: D
◉ Sources of validity evidence include all of the following EXCEPT
A. Evidence based on inter-rater agreement
B. Evidence based on test content
C. Evidence based on relations with other variables
D. Evidence based on response processes. Answer: A
* A is reliability not validity
◉ Which of the following is NOT an example of validity evidence?
A. Scores on this quiz are consistent with scores on a parallel form of
this quiz (alternate reliability not validity)
B. Scores on this quiz are associated with the amount of time
students spent preparing
C. While you are taking this quiz, you are thinking about content
from the last lecture and reading assignment
SCRIPT 2026 COMPLETE QUESTIONS AND
ANSWERS GRADED A+
◉ Suppose a class is known for being extremely difficult, and the
distribution is positively skewed. The average grade in the class is 65
with a standard deviation of 5 points. At least what percentage of
grades in the class are between 50 and 80?
A. Approximately 75%
B. Approximately 89%
C. Approximately 68%
D. Approximately 99%. Answer: B
◉ How would you measure test-retest reliability?
A. Calculate the standard error of measurement
B. Use a t-test to examine the mean difference between scores on
two testing occasions
C. Correlate individual's scores on two occasions of a test
D. Calculate Cronbach's alpha. Answer: C
◉ If Cronbach's alpha of a scale is .60
A. The test is too easy
,B. The test is too difficult
C. You may want to remove items for redundancy
D. The reliability of the scale is inadequate (i.e., not acceptable).
Answer: D
◉ SPSS can be used to do all of the following EXCEPT
A. Help inform decisions about which scale items to keep or remove
B. Display the distribution of scores on a scale
C. Help write good scale items
D. Provide Cronbach's alpha of a scale. Answer: C
◉ For a good survey item, the item-total correlation is...
A. High if the survey is standardized
B. Low if the survey is homogeneous
C. High if the survey is homogenous
D. Low if the survey is standardized. Answer: C
◉ If you score a 5 out of 5 on this quiz, you may conclude that you
are a genius. That would be a(n)...
A. Rational inference
B. Irrational inference
C. Rational decision
, D. Irrational decision. Answer: B
◉ Validity is about?
A. The consistency of scores on alternate forms of a test
B. The similarity of individuals' performance on items within a test
C. The extent to which graders agree on an individuals' test score
D. The quality of inferences individuals' draw from a test score.
Answer: D
◉ Sources of validity evidence include all of the following EXCEPT
A. Evidence based on inter-rater agreement
B. Evidence based on test content
C. Evidence based on relations with other variables
D. Evidence based on response processes. Answer: A
* A is reliability not validity
◉ Which of the following is NOT an example of validity evidence?
A. Scores on this quiz are consistent with scores on a parallel form of
this quiz (alternate reliability not validity)
B. Scores on this quiz are associated with the amount of time
students spent preparing
C. While you are taking this quiz, you are thinking about content
from the last lecture and reading assignment
