Hello Charles,
my research question is to measure the reliability of a tool to evaluate muscle strength across three sessions (S1, S2, S3) in two groups (people with CLBP and healthy controls). However, I’m interested in checking if there are any differences in strength levels between the groups and also exploring if there is any learning effect between sessions. I thought about exploring this through the Two way analysis of variance tests ANOVA. Is what I’m planing to do correct?
Dear Charles,
Thank you so much for your help,
I have one more thing that concerns me and I hope you can answer me,
I measured the reliability between sessions for each group using the interclass correlation coefficient (ICC) for relative reliability and using the SEM and the LOA for absolute reliability.
My question is: Are the results I’ll get from the Two-way analysis of variance tests (ANOVA) to explore the learning effect between sessions will be similar to the ones I’ll get from the LOA?
Hello Charles,
my research question is to measure the reliability of a tool to evaluate muscle strength across three sessions (S1, S2, S3) in two groups (people with CLBP and healthy controls). However, I’m interested in checking if there are any differences in strength levels between the groups and also exploring if there is any learning effect between sessions. I thought about exploring this through the Two way analysis of variance tests ANOVA. Is what I’m planing to do correct?
Hi Shouq,
From your description, it does seem like Two way analysis of variance is the way to go.
Charles
Dear Charles,
Thank you so much for your help,
I have one more thing that concerns me and I hope you can answer me,
I measured the reliability between sessions for each group using the interclass correlation coefficient (ICC) for relative reliability and using the SEM and the LOA for absolute reliability.
My question is: Are the results I’ll get from the Two-way analysis of variance tests (ANOVA) to explore the learning effect between sessions will be similar to the ones I’ll get from the LOA?
Regards
Shouq
Hello Shouq,
What sort of Two-way ANOVA do you have in mind?
I am assuming that you are using Bland-Altman for LOA. See
https://real-statistics.com/reliability/interrater-reliability/bland-altman-analysis/limits-of-agreement/
In this case, I don’t see the connection between LOA and Two-way ANOVA.
Charles
Who needs Minitab when we have you?
Thank you