A researcher wants to create an intervention to improve the well-being of first-semester graduate students,so she gives one group of students specific doses of rocky road ice cream,the next group of students specific doses of licorice,and the third group of students specific doses of chewy fruit-flavored candies for their treatments.To analyze the differences in well-being between the types of treatment,she would use a(n)______.
A)dependent-samples t test
B)analysis of variance
C)independent-samples t test
D)repeated-measures analysis of variance

Question

Quizplus · Accepted Answer

The researcher is comparing the effects of different types of treatments (rocky road ice cream, licorice, chewy fruit-flavored candies) on well-being of first-semester graduate students. Therefore, the appropriate statistical analysis would be an analysis of variance (ANOVA) to compare the means of three or more groups. Dependent-samples t-test is used to compare means of two related groups, independent-samples t-test is used to compare means of two independent groups, and repeated-measures ANOVA is used to compare means of three or more related groups over time.

A Researcher Wants to Create an Intervention to Improve the Well-Being