Question

We wish to test whether Internet use increases depression score. We measure the depression scores of a random sample of non-Internet-users, have them use the Internet for six months, and then measure their depression scores again

	A.	Chi-square
	B.	Paired sample t-test
	C.	Simple Regression
	D.	ANOVA
	E.	Two sample t-test
	F.	Multiple regression

Answer 1

B. Paired sample t-test

Explanation:

For the given samples, there is a one-to-one relationship exists between the observations of the both samples. It is observed that both samples are dependent samples. Given data is a paired data. There is a before after type relationship exists between the data. The both samples are generated for the same persons who not use the internet before and use the internet after. So, in this case, we need to use the paired-samples t-test or dependent samples t-test.