I went on a mission trying to figure out how I might be able to convert partial eta squared reported in SPSS to eta squared (thank God that my professors are 12 hour time difference away 8-X lol).
Thank God, the pursuit got cut short after I came across the linked article.
There is no way to convert partial eta squared to eta squared. You have to go back to calculate the sum of squared total.
eta squared=SSeffect/SStotal
Partial eta squared=SSeffect/(SSeffect+SStotal)
Hope this helps.
http://yatani.jp/HCIstats/ANOVA
Thank God, the pursuit got cut short after I came across the linked article.
There is no way to convert partial eta squared to eta squared. You have to go back to calculate the sum of squared total.
eta squared=SSeffect/SStotal
Partial eta squared=SSeffect/(SSeffect+SStotal)
Hope this helps.
http://yatani.jp/HCIstats/ANOVA
Anyone who wants eta squared instead of partial eta squared, use JASP : https://jasp-stats.org/ - You can select in additional options estimates of effect size,and these include eta squared. the programme is free and easy to use.
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