Power In A Study
NPTE Clinical Files | Physical Therapy
Kyle Rice
4.9 • 631 Ratings
🗓️ 4 December 2019
⏱️ 14 minutes
🧾️ Download transcript
Summary
Sal is a therapist who is running a research study to determine the effectiveness of a forearm band on grip strength. The physical therapist is challenged with determining the least likely change that will increase the study’s power.
How well do you know your research concepts? Let's test your skills in this excellent episode about power.
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Transcript
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| 0:00.0 | You are now tuning in to the MPTE Clinical Files, two mock MPTE-based questions told and solved week by week. |
| 0:08.1 | Thank you for tuning in to the MPT Clinical Files. My name is Kyle Rice, the MPT Prep Coach, the founder of the PT Hustle and the creator of the MPT Prep Success Coaching Program. |
| 0:18.3 | And if you would like a free cheat sheet that goes along with this specific |
| 0:22.4 | question, tune in to the end of this episode. And I'm going to give you more information on how to |
| 0:27.7 | get that. All right. So for our next MPT clinical file, we have Sal. And Sal is researching |
| 0:33.5 | the effectiveness of a forearm band prototype on grip strength. |
| 0:39.0 | The study will be performed on 150 subjects with lateral epicondylagia. |
| 0:45.1 | One group will receive the band, and the other group will receive education regarding self-treatment of their condition. |
| 0:53.2 | Which of the following is the least likely to increase the power of the study? |
| 0:58.8 | So we have a increase and increase in the sample size. |
| 1:04.7 | B is a decrease in the variance within each group. |
| 1:09.3 | C is a reduction in the beta value and D is an increase in the |
| 1:15.8 | variance within each group. All right. So again, this is this research, y'all. I know, I know, I know it's |
| 1:23.8 | not a lot of points on the exam, but we definitely need to know some of these major |
| 1:28.1 | concepts that show up, power being one of them. So let's get to work. So we had Sal, and Sal is |
| 1:34.8 | researching the effectiveness of the forearm band prototype on grip strength. All right? So that's |
| 1:40.4 | pretty straightforward. That's our first line up top. And so I'm getting an idea. |
| 1:45.1 | You all know those bands that kind of go around the forearm |
| 1:47.5 | and they're there to help with lateral up condolagia. |
| 1:50.5 | So that helps, you know, me to get that like picture, |
| 1:54.2 | that visual picture of what's kind of going on here. |
| 1:57.1 | So we're, |
... |
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