A delayed recall of certain words using a new memory measure.
In terms of criterion validity, the situation shown in the diagram reflects…
a)higher validity for Group B.
b)no bias in favor of either group.
c)test bias in favor of Group B.
d)differential validity.
16)Find the standard deviation for the following group of scores: 62, 75, 41, 59, and 65.
17) On a measure of depression, the mean is 57 and the standard deviation is 7. What is the z-score for an actual score of 63?
18) A psychologist has been studying delayed recall of certain words using a new memory measure. On this measure, she has found that the distribution follows a normal curve. Using the normal curve table, what percentage of students have z-scores below 1.5? (Use Appendix C: Table of Areas and Ordinates of the Normal Curve; provided on Canvas)
19) A psychologist has been studying delayed recall of certain words using a new memory measure. On this measure, she has found that the distribution follows a normal curve. The memory test has a mean of 12 words recalled and a standard deviation of 3.5. Using a normal curve table, what score on the memory measure would a person need to have to be in the top 25%? (Use Appendix C: Table of Areas and Ordinates of the Normal Curve; provided on Canvas)
20) There is a 0.88 correlation between the marriage rate in NY and the number of murders by blunt objects (http://www.tylervigen.com (Links to an external site.)). How much of the variance in the relationship between these two variables is accounted for?
21) Identify and describe two (2) factors that affect reliability coefficients. Be sure to define reliability coefficient in your answer before explaining how the two factors affect reliability coefficients.