As I'm working on my project ( effectiveness of psychoeducation program on patients with schizophrenia), I will conduct a quasi-experimental design ( control & intervention group ), and I will examine many variables before and after intervention ( one, three, and six months after intervention). but I'm a little confused about ( one month after intervention), according to my reading in literature, same as my study. some researchers do it directly after the intervention, some after one week, and other after one month. then all of them examine their variables after 3, 6 months. so my concern about the time especially for ( one month after intervention) does it affect my study results if I do it directly or after one week?
Pre immediate post (dependon length of intervention) and then follow ups is most
typical- again think about depending on when the intervention should take effect.
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I support the answerfrom Weems, but the times have to be identical in the two groups
I agree that so long as the times are identical for the two groups then it should not make any difference whether you look at it immediately or after a week.
Normally it is more acceptable to have a look at results immediately. However, it also depends on the nature of variables. Effect of some variables may be more apparent after a particular amount of time. So you may want to consider that possibility in mind as well.
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