Hello.
What is the type of study in which data are collected two times before the intervention and one time post-intervention? It is a one-group design, the participants served as their own controls and were tested before the exercise program at week 1 (pretest 1) and week 7 (pretest 2) to establish the baseline measures, and then after the intervention.
I think that what you mentioned still fits the description of a pretest-posttest study design. Regardless of the number of measurements performed before the intervention, they remain pretest measurements.
I agree with Aedrian Abrilla. It is Pre-test and post-test design which is a form of quasi-experimental research.
Thanks
I am not sure that I agree with Aedrian Abrilla and Proloy Barua . To me it rather sounds like a one-arm crossover trial. A first period in which usual care takes place, and a second period for the intervention. However, for a crossover trial I would recommend to have another arm with intervention followed by usual care, since subjects may have reached a stable plateau at second "pretest", in which it is difficult to improve any further. This being said without knowing the topic of interest.
Those are some good points, Jesper Fabricius . If the time period around the week 1 and week 7 measurements is considered an intervention, then I have no issue with the design being considered crossover trial. However, Andreia Dias Rodrigues specified that the purpose of week 1 and week 7 measurements are to establish baseline measures, rather than setting up the time period between the pretest measurements as that of an intervention of "usual care/no intervention."
I think it ultimately depends on the research group's framework, topic and rationale which they used to come up with the 2 pretest measurement periods-exercise program-posttest plan.
Thank you for your answers.
This study design was chosen because the group of participants is small (20). As we do not have a control group, we thought this would be a good study design ... But according to my research, there is no definition for this type of study design, and so I cannot define it.
The intervention program focuses on relaxation sessions in stress management.
So, you recommend doing another evaluation, as if it were a follow-up, a few weeks after the intervention, so that it can be considered a crossover trial?
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