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Effect Size Generator

Effect Size Generator - Version 5 (Current Version)
Huge upgrade

Effect Size Generator - Version 3.5 (Current Version)
Major upgrade which now includes meta-analysis capabilities and allows for negative effect sizes. Other additions: allows for saving when exiting programme; warns when overwriting a file name; fixed bug whereby notepad wasn't found on some systems. Build 010 streamlined the code and fixed a confusion with the a priori power analysis tab (as of 3rd April, 2006). Build 019 remembers last accessed directory from the 'open' command, provides a 'most recent used' files list under the 'File' menu, saves effect sizes for between conditions over time into the effect size generator front page as 'change scores'. Also incorporates confidence intervals around a mean analysis, chi square analysis (2x2, 2x3, 3x3), and allows for interaction effect size computation. Build 3.5.3 allows for many more effect size conversions.

Effect Size Generator - Version 3.2
This version has some minor corrections, extra analyses and a huge help file on effect sizes. It allows one to select which sd to use in the analyses, computes all confidence intervals and allows one to convert different effect sizes (e.g., One way ANOVA F value to Cohen's d).

Effect Size Generator - Version 2.3
Cleaner code & colour coded text boxes - this will be the last version until a full point release.

Effect Size Generator - Version 2.2
Database redesigned and starting set-up improved. Now saves files as "*.esg" and registers esg file extensions to the programme. Once a file has been saved it can even be opened by a double-click (thanks to Daniel Trembath for an incredibly quick turn-around explanation of how to pass the global variable 'command' onto an 'open' function following a double-click - and he contracts out too!).

Effect Size Generator - Version 2.1
Now Includes t-statistics; can print to any printer and minor cosmetic changes

Effect Size Generator - Version 2.0
Great big spanking new version. Big changes! You can now save files, open saved files and generate a printed one page summary report to keep in your records. You can now even save and email your own study details to a colleague!!

Effect Size Generator - Version 1.2
Buffer overflow bug fixed (can now have a total sample size greater than 32,000) 

Effect Size Generator - Version 1.1
Answers rounded to 5 decimal points to avoid the confusion of numbers such as "5.286539E-2".

Effect Size Generator - Version 1.0

 

Odds Ratio Generator

Odds Ratio Generator - Version 3.5
This release allows for two group (improved vs unimproved) or 3 group (improved, no change, deteriorated) comparisons. Other additions: allows for saving when exiting programme; warns when overwriting a file name. Build 010 - Added Chi Squared analysis, Phi and Cramer's Phi statistics. Build 019 remembers last accessed directory from the 'open' command, provides a 'most recent used' files list under the 'File' menu, allows both 2x2 and 2x3 open / save commands without error reports. Build 3.5.3 allows for effect size estimates (w and phi) and opens, close and saves files depending upon number of cells.

 

Reliable Change Generator

Reliable Change Generator - Version 3.5 (Current Version)
Major overhaul. Redundancies removed, cleaner interface, check for non-intersecting curves. Other additions: allows for saving when exiting programme; warns when overwriting a file name; fixed bug whereby notepad wasn't found on some systems. Build 019 remembers last accessed directory from the 'open' command, provides a 'most recent used' files list under the 'File' menu.

Reliable Change Generator - Version 2.0
Great big spanking new version. Big changes! You can now save files, open saved files and generate a printed one page summary report to keep in your records. You can now even save and email your own study details to a colleague!!

Reliable Change Generator - Version 1.3
Results rounded to 5 decimal places so as to not confuse the user with numbers such as "5.286539E-2")

Reliable Change Generator - Version 1.2
Redesigned so that it now works on low screen resolution and various bug fixes.

Reliable Change Generator - Version 1.1
This version was a bit buggy, particularly on Win 98 - I advise you to get the latest version if you still have this one.

Reliable Change Generator - Version 1.0.1

Reliable Change Generator - Version 1.0.0

 

Random Number Generator

Random Number Generator - Version 1.0
Allows for saving when exiting programme; warns when overwriting a file name; fixed bug whereby notepad wasn't found on some systems; provides feedback to user regarding status of computations; warns if more that 32676 random numbers are requested. Build 019 fixes overflow bug.