Bootstrap ANOVA in SPSS 19-20

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Bootstrap ANOVA in SPSS 19-20

jpmaroco
Hi all,
I am trying to get some bootstrap results for ANOVA (specifically for the Partial Eta Squared statistic) in SPSS 19.
I selected the Bootstrap option. SPSS loops through the defined bootstrap samples, but the output shows no bootstrap results. All I got was a regular ANOVA table. Does anybody know how to get the bootstrap statistics for ANOVA?
Thanks in advance
João
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Re: Bootstrap ANOVA in SPSS 19-20

Alex Reutter
Hi João,

Assuming you're using the GLM procedure, I don't see support for the Partial Eta Squared statistic in bootstrapping; see http://publib.boulder.ibm.com/infocenter/spssstat/v20r0m0/topic/com.ibm.spss.statistics.help/bootstrap_analysis.htm and scroll down to GLM Univariate.

Alex




From:        jpmaroco <[hidden email]>
To:        [hidden email]
Date:        10/06/2011 04:34 AM
Subject:        Bootstrap ANOVA in SPSS 19-20
Sent by:        "SPSSX(r) Discussion" <[hidden email]>




Hi all,
I am trying to get some bootstrap results for ANOVA (specifically for the
Partial Eta Squared statistic) in SPSS 19.
I selected the Bootstrap option. SPSS loops through the defined bootstrap
samples, but the output shows no bootstrap results. All I got was a regular
ANOVA table. Does anybody know how to get the bootstrap statistics for
ANOVA?
Thanks in advance
João

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RE: Bootstrap ANOVA in SPSS 19-20

jpmaroco

Hi Alex,

Thank you for your reply. Yes, you’re right. It doesn’t seem possible to get regular ANOVA statistics (F, eta, …) bootstrapped, only descriptives and post-hocs can be obtained with bootstrap (wondering what would be the propose of a bootstrap in GLM if not even the F statistic can be obtained with bootstrap)

Best,

João

 

From: Alex Reutter [via SPSSX Discussion] [mailto:[hidden email]]
Sent: sexta-feira, 7 de Outubro de 2011 16:10
To: jpmaroco
Subject: Re: Bootstrap ANOVA in SPSS 19-20

 

Hi João,

Assuming you're using the GLM procedure, I don't see support for the Partial Eta Squared statistic in bootstrapping; see http://publib.boulder.ibm.com/infocenter/spssstat/v20r0m0/topic/com.ibm.spss.statistics.help/bootstrap_analysis.htm and scroll down to GLM Univariate.

Alex




From:        jpmaroco <[hidden email]>
To:        [hidden email]
Date:        10/06/2011 04:34 AM
Subject:        Bootstrap ANOVA in SPSS 19-20
Sent by:        "SPSSX(r) Discussion" <[hidden email]>





Hi all,
I am trying to get some bootstrap results for ANOVA (specifically for the
Partial Eta Squared statistic) in SPSS 19.
I selected the Bootstrap option. SPSS loops through the defined bootstrap
samples, but the output shows no bootstrap results. All I got was a regular
ANOVA table. Does anybody know how to get the bootstrap statistics for
ANOVA?
Thanks in advance
João



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