We Want to Study the Mean Difference in Autonomy Between

Multiple Choice

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.