Hi!

I have 4 variables. 3 IV and 1 DV.

If a research design has two groups , not randomly assigned, selected through purposive sampling , with one intervention introduced by a gap of 6 weeks and is also checked through regression analysis , what kind of a research design will it be called?

1. comparative quasi experimental design with pre-post test

2.quasi experimental design

3.longitutdinal pre-post test design?

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