What test should be used to analyze these two studies? Select from the single-sample z test; single-sample t test; independent-samples t test; paired-samples t test; between-subjects, one-way ANOVA; and one-way, repeated-measures ANOVA.

a. High school seniors who plan to (i) not go to college, (ii) go to a community college, or (iii) go to a four-year college are matched in terms of intelligence. Ten years later, the three matched groups are compared in terms of mean annual income.

b. A random sample of people with a family history of Alzheimer’s disease is compared to a random sample of people from the general population in terms of their mean score on an interval-level measure of fear of dementia.