(Solved): Researchers compared the effects of an exercise intervention on depressive symptoms (normally distri ...

Researchers compared the effects of an exercise intervention on depressive symptoms (normally distributed) between control group and intervention group. With regard to the following SPSS output, choose all that apply.

a. An independent t test is the correct choice of test

b. A paired t test is the correct choice of test

c. Control group scored higher on depressive symptoms (mean = 3.47, SD = 2.92) than the intervention group (mean = 2.00, SD = 2.04).

d .The mean difference (1.467) between the two groups was statistically significant (t = 1.594; p = 0.123).

Group Statistics Std. Error Mean Group N Mean Std. Deviation Depression Posttest 15 3.47 2.924 .755 Control group Intervention group 15 2.00 2.035 .526 Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means Significance One-Sided p Two-Sided p F 95% Confidence Interval of the Difference Lower Upper Sig. Std. Error Difference t df Mean Difference 1.467 Depression Posttest 4.303 Equal variances assumed .047 1.594 28 .061 .122 .920 -.418 3.351 Equal variances not assumed 1.594 24.986 .062 .123 1.467 .920 - 428 3.361