f2 is greater than 1

 PLS Junior User
 Posts: 2
 Joined: Mon Apr 04, 2011 10:20 am
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f2 is greater than 1
I need help with my PLS model to.
All quality criteria of it are actually met, but the effect size (f2) of my exogenous variables is greater than 1.
I have 3 IV and 2 DV: A>D, B>D, C>D; A>E, B>E, C>E
What do means an effect size greater than 1? Where I made a mistake?
I'm confused and don't know how to proceed further ...
Thank you very much.
Nadja
All quality criteria of it are actually met, but the effect size (f2) of my exogenous variables is greater than 1.
I have 3 IV and 2 DV: A>D, B>D, C>D; A>E, B>E, C>E
What do means an effect size greater than 1? Where I made a mistake?
I'm confused and don't know how to proceed further ...
Thank you very much.
Nadja

 PLS Expert User
 Posts: 248
 Joined: Sat Jul 25, 2009 1:34 pm
 Real name and title:

 PLS Junior User
 Posts: 2
 Joined: Mon Apr 04, 2011 10:20 am
 Real name and title:

 PLS Expert User
 Posts: 248
 Joined: Sat Jul 25, 2009 1:34 pm
 Real name and title:
Hey Nadja,
The typical references for effect size are:
Chin, W. (1998): Issues and Opinion on Structural Equation Modeling, in: ManagementInformation Systems Quarterly, Vol. 22, No. 1, p. 317.
Cohen, J. (1988): Statistical Power Analysis for the Behavioral Sciences, 2nd edition,
Hillsdale, p. 413.
Some further nice information for the effect size you can also find in my working paper (only German) on pp. 34 f.:
https://www.unibw.de/ifc/team/wimi/nitz ... load/down1
Greetings,
Christian
The typical references for effect size are:
Chin, W. (1998): Issues and Opinion on Structural Equation Modeling, in: ManagementInformation Systems Quarterly, Vol. 22, No. 1, p. 317.
Cohen, J. (1988): Statistical Power Analysis for the Behavioral Sciences, 2nd edition,
Hillsdale, p. 413.
Some further nice information for the effect size you can also find in my working paper (only German) on pp. 34 f.:
https://www.unibw.de/ifc/team/wimi/nitz ... load/down1
Greetings,
Christian
Dear christian!
I have a brief question regarding the effect sizes:
I have a model with 4 IV and 1 DV, R² is 0.54. It showed that two of the paths are significant, but even these two paths only have effect sizes of 0.11 and 0.12. How can that be explained? Is it dependent on the measurement errors?
Thank you!
Matthias
I have a brief question regarding the effect sizes:
I have a model with 4 IV and 1 DV, R² is 0.54. It showed that two of the paths are significant, but even these two paths only have effect sizes of 0.11 and 0.12. How can that be explained? Is it dependent on the measurement errors?
Thank you!
Matthias

 PLS Expert User
 Posts: 248
 Joined: Sat Jul 25, 2009 1:34 pm
 Real name and title:
Please check following post at the end for a possible answer:
viewtopic.php?t=1453&postdays=0&postorder=asc&start=60
Cheers,
Christian
viewtopic.php?t=1453&postdays=0&postorder=asc&start=60
Cheers,
Christian
Re: f2 is greater than 1
In my analysis I have one negative significant moderating effect and a nonsignificant one. The R² of the model with the moderating effects is 0.850 as opposed to R² of 0.2108 in the model without the interaction effects. This leads to an effect size of over 4. Is this still possible? And according to Cohen 1998 who stated that the definition of a high effect size could be different in different fields?
I would appreciate an answer.
Thanks!
I would appreciate an answer.
Thanks!

 SmartPLS Developer
 Posts: 842
 Joined: Tue Mar 28, 2006 11:09 am
 Real name and title: Dr. JanMichael Becker
Re: f2 is greater than 1
That sounds very strange. Effects sizes of moderating effects are usually quite small. Do you use the f² effect size from the SmartPLS output or a selfcalculated one?
Dr. JanMichael Becker, University of Cologne, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
Researchgate: https://www.researchgate.net/profile/Ja ... v=hdr_xprf
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de