Saskia Annen

5 Questions 7 Answers 0 Followers

Questions related from Saskia Annen

How to correctly reference instruments in systematic review following APA?

Hello, I am running into an issue and do not know how to cite / reference correctly here. APA states that instruments and measurements need to be referenced with the author's name. At the same...

12 February 2021 9,676 3 View

Which constraints to choose for Wald-Test in Club Sandwich [R] ?

Hello there, I am using the robumeta package in R to fit a meta - regression model. One of my categorical moderators has three levels. Everything is dummy coded. AFAIK regression coefficients...

07 January 2021 8,192 3 View

Meta-analysis using correlations: Is it possible to integrate several r to total measure?

Hello community, I request help to figure out an issue in my meta analysis. I am using correlation coefficients r to investigate the relationship between providing (A) and outcome (B). Papers...

23 May 2020 4,796 8 View

Post-hoc / intermediate power analysis in meta analysis

Hello, I am confused about the best practice regarding power analysis for my meta-analysis in my specific case. 1. There is no earlier meta-analysis or even systematic review which gives me an...

01 January 1970 3,714 3 View

Best way to handle missing alpha of composite version of a scale.

Hello, For meta-analysis it is advised to correct for reliability of the measurements. For this, the raw correlation are transformed to reflect unattenuated correlation coefficients using the...

01 January 1970 9,070 2 View