Question

I want to design a psychology research study in spss asseing the impact of an independent variable (regular exercise over 8 weeks) on a dependent variable (depression). impact on depression measured as change in scores on the widely accepted BDI-II depression diagnostics test. Measuring points at start and end of the 8 weeks.

For this my understanding is that the repeated measures t-test is right.

I want to also compare the results of this group receiving treatment with a control group (no activity). I intend to measure in the same way as experimental group (i.e ta repeated measures test).

The final step would be to compare the results for these two groups. This will give my study higher credibility as I have a control group to benchmark against.

is my thinking correct? and what atatistical test do i use for the last teat to compare the experimental and control group? t-test for independent groups or something else?

many thanks

Answer 1

Thank you

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