We want to study the mean difference in autonomy between first-born and second-born children. Instead of taking a random sample of children we take a random sample of families and sort the children into first- and second-born. The dependent variable is a measure of autonomy. This experiment would most likely employ
a. a repeated measures analysis.
b. an independent measures analysis.
c. a correlation coefficient.
d. a scatterplot.
Question 2
We treat the repeated sample case differently from the case involving two separate samples because of
a. the difference in the means of the two samples.
b. the fact that different subjects were involved.
c. the correlation between the two sets of data.
d. the size of the sample.