Luke experiences difficulty focusing, regardless of whether the visual stimulus is near or far away. Luke probably has
A. hyperopia.
B. astigmatism.
C. refraction.
D. myopia.
Answer: B
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Most educators agree that test reliability and validity can be dangerous if
A) the administrator does not like the child for some reason. B) the test is administered orally. C) the test is administered outside of the child's home. D) it results in a child being labeled. E) it is administered by anyone other than the child's primary care provider.
Cognitive development in the first year of life enables infants to:
A. realize that they cause things to happen B. remain passive partners in social interaction C. sense their status in social interaction D. A and C only E. all of these
Which test involves ranking data in ascending order and adding the ranks separately for each condition?
A. Mann-Whitney B. Spearman’s rho C. Friedman’s ANOVA D. Pearson’s r
Calculate Cramér’s 
for the following data:
a. .12
b. .03
c. .20
d. .06