Search found 65 matches
- Thu Oct 26, 2023 2:39 pm
- Forum: Statistics
- Topic: Which ICC to choose
- Replies: 0
- Views: 22674
Which ICC to choose
Hey everyone, I am looking for a check and a bit of advice. A colleague of mine is working on a study where he wants to use ICC to check for consistency in performance. In this study, 20 participants took part in a single session. They all performed five max-effort kicks into a force plate during th...
- Fri Jun 16, 2023 6:47 am
- Forum: jamovi development
- Topic: Feature reguest: Dot plots for effect sizes in models
- Replies: 0
- Views: 21199
Feature reguest: Dot plots for effect sizes in models
Frequently I would prefer to have the option to draw a dot plot with error bars of effects (CI) for predictors in my (e.g., linear) models. The idea would be to draw effect sizes (like standardized betas) and their CIs below each other. On the y-axis, the predictors could be listed, and X-axis would...
- Thu Aug 25, 2022 6:24 am
- Forum: Statistics
- Topic: Sensitivity analysis for LMM
- Replies: 1
- Views: 3638
Re: Sensitivity analysis for LMM
Update:
so far I came across the simr R package that seems to do the job of listing observed power and allowing for simulations (extending sample with simulated data along or within chosen variable) and drawing power curves.
so far I came across the simr R package that seems to do the job of listing observed power and allowing for simulations (extending sample with simulated data along or within chosen variable) and drawing power curves.
- Sun Aug 21, 2022 1:45 pm
- Forum: Statistics
- Topic: Sensitivity analysis for LMM
- Replies: 1
- Views: 3638
Sensitivity analysis for LMM
Hi all, I am looking for help. We received reviews for an article where we ran LMMs. The weakness of the study was a small sample, N=21 participants. We ran rather simple LMMs with a (continuous) rating of stimuli as a dependent variable, two continuous predictors as covariates, and stimuli and rate...
- Tue May 03, 2022 12:47 pm
- Forum: Statistics
- Topic: mean weighted correlation coefficients in Major modul
- Replies: 0
- Views: 8686
mean weighted correlation coefficients in Major modul
Hi all, In a recent review of my meta-analysis manuscript, Ref2 suggested we should report and compute mean weighted correlation coefficients (r-bar: Hedges & Olkin, 1985; Lipsey & Wilson, 2001). Currently, I am using REML with Fisher's r-to-z transformation. Does the MAJOR module have an op...
- Mon Apr 25, 2022 11:42 am
- Forum: jamovi development
- Topic: Feature request: Other effects for mean differences
- Replies: 0
- Views: 11213
Feature request: Other effects for mean differences
Hi, Would it be possible to add other effect sizes (Hedge's g, Glass's Delta) to choose from in mean comparisons tests? Cohen's d is fine, but when working with smaller samples or with unequal variance, Hedge's g would be nice to have. Also, H's g is the effect size the Major module works as SMD. So...
- Tue Mar 29, 2022 7:37 am
- Forum: Statistics
- Topic: Comparing three means - two from samples, one from norm
- Replies: 3
- Views: 2393
Re: Comparing three means - two from samples, one from norm
Hey reason180,
I was thinking about this too. But, I am not comparing against a point estimate of only 35; the mean score is 35 with a known SD of 5. So it is more comparing against the distribution of values than a single point.
I was thinking about this too. But, I am not comparing against a point estimate of only 35; the mean score is 35 with a known SD of 5. So it is more comparing against the distribution of values than a single point.
- Tue Mar 29, 2022 7:33 am
- Forum: Statistics
- Topic: Comparing two effect sizes
- Replies: 14
- Views: 5193
Re: Comparing two effect sizes
Hey Reason180,
Thanks for your reply and suggestion to use a one-sample t-test comparing against 0.
Usually, there are more ways to answer one question. Would you think the solution I outlined is less optimal than yours or a different approach that should ultimately yield overlapping answers?
Thanks for your reply and suggestion to use a one-sample t-test comparing against 0.
Usually, there are more ways to answer one question. Would you think the solution I outlined is less optimal than yours or a different approach that should ultimately yield overlapping answers?
- Wed Mar 23, 2022 10:18 am
- Forum: Statistics
- Topic: Comparing three means - two from samples, one from norm
- Replies: 3
- Views: 2393
Comparing three means - two from samples, one from norm
Hi, I am looking for a solution how to compare three means in jamovi. We plan to collect two samples of people in a study we run and have them perform a standardized test. Mean scores from the standardized test may differ in the two samples, but apart from this comparison, I want to compare the two ...
- Tue Mar 22, 2022 7:11 pm
- Forum: Statistics
- Topic: Comparing two effect sizes
- Replies: 14
- Views: 5193
Re: Comparing two effect sizes
This post has evolved into a sort of my personal log on how to solve the question at hand - compare two effect sizes. It may come useful to someone else... In my last efforts, I planned on using meta-analytical approaches for the comparison. I would have compared the two effect sizes using Cochran's...