Category Archives: Research Methods & Statistics

Valid logical inferences, scientific integrity, ethics, and authenticity in the neoliberal academic climate

The correct adjustment of α-levels is a logical prerequisite for valid inferences and conclusions (that is, in the NHST framework). However, if stringent (appropriate) α-control techniques would be applied, many experiments would not reach statistical significance at the conventional α …

Preregistration of studies: A methodological stratagem to counter academic fraud

Preregistration is the practice of publishing the methodology of experiments before they begin. This strategy reduces problems stemming from publication bias and selective reporting of results. See for example:

A exemplary list of currently preregistered studies can …

NHST: P-hacking


Source URL: https://shinyapps.org/apps/p-hacker/


Source URL: https://shinyapps.org/apps/metaExplorer/#tab-2218-2


Source URL: https://shinyapps.org/showapp.php?app=https://lmpp10e-mucesm.srv.mwn.de:3838/felix/N-per-discovery&by=Etienne%20LeBel&title=N%20per%20discovery&shorttitle=N%20per%20discovery


Source URL: https://www.shinyapps.org/apps/vs-mpr/


Source URL: https://shinyapps.org/showapp.php?app=https://lmpp10e-mucesm.srv.mwn.de:3838/felix/lakens_pcurve/&by=Daniel%20Lakens&title=P-value%20distribution%20and%20power%20curves%20for%20an%20independent%20two-tailed%20t-test&shorttitle=P-value%20distribution%20and%20power%20curves

Psychology Meta Search Tool (v1.0.2)

Below you can find a custom-made “meta-search-tool” I programmed (coded in ActionScript2) which facilitates to effectively search the web for psychology and neuroscience related information.
You can freely download the program as a zipped executable:
https://christopher-germann.de/tools/meta_search_tool_v1.2.zip

Citation File Format (*.cff)

95% Confidence Intervals

In inferential statistics, a confidence interval (CI) is a type of interval estimate, computed from the statistics of the observed data, that might contain the true value of an unknown population parameter. The interval has an associated confidence level that, …