Frequently Asked Questions
The FAQs below will be divided into categories including those above. Some of the FAQs have a few mathematical formulae which may be seen using mathplayer which may be downloaded for free from here. Computer code is featured in some of the FAQs and is highlighted in a (grey coloured) text box. This code can be copied directly to your personal PC file (e.g. into a SPSS syntax file) however you also need to copy any small piece of text immediately outside the text box when you copy the code in order to copy over the linebreaks or else you will find the text is copied over as a single line!
If you wish to search for a particular word and are using Internet Explorer just press Control-f and a 'find' slot will appear above the page in your browser. Also please note that macros in the EXCEL spreadsheets will not work (by default) unless they are enabled.
Meta-analysis issues: 1) How do I measure publication bias? 2) How do I obtain a confidence interval for pooled estimates from sets of log odds, Cohen's d and Pearson correlations using a) meta-analysis and b)for Cohen's d as suggested for combining two studies to assess replication of a result?
[Last updated on 1 July 2006]