Question: The authors state that "girls were more likely to score high on this scale [the Attitudes and Concepts of Death scale] than boys at pretest (t=2.47, df = 27, p <0.02), but this difference did not hold at posttest (t=.77, df=26, p‹.450)" (p. 413).

(a) Why did the authors use a t-test in this instance?

(b) Which type of t-test did the authors use? Why did they use this particular one? (c) Describe in your own words what these results mean.