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Psychological statistics, quantitative psychology. Statistics in social sciences. Experimental design, data analysis.enThu, 23 Nov 2017 15:04:52 GMTvBulletin60http://www.talkstats.com/images/misc/rss.pngStatistics Help @ Talk Stats Forum - Psychology Statistics
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Need Help Determining Analysis for Likert Scale Data
http://www.talkstats.com/showthread.php/70813-Need-Help-Determining-Analysis-for-Likert-Scale-Data?goto=newpost
Wed, 22 Nov 2017 20:36:39 GMTHello,
I need help determining what analysis to run. I have 2 independent variables (a control and experimental condition) with 4 dependent...Hello,

I need help determining what analysis to run. I have 2 independent variables (a control and experimental condition) with 4 dependent variables (one scale with 4 subscales, each of which I assume should be treated as a dependent variable.)

This is Likert data (ordinal) so I thought I would be running some form of ordinal regression, but I cannot find one that accommodates 4 dependent variables. I know there is some debate as to whether I can run something like a MANOVA on Likert data, but I rather be true to my data type.

Thanks in advance
]]>Psychology Statisticsplshelpmewiththesishttp://www.talkstats.com/showthread.php/70813-Need-Help-Determining-Analysis-for-Likert-Scale-DataAssessing sample-size after data collection
http://www.talkstats.com/showthread.php/70802-Assessing-sample-size-after-data-collection?goto=newpost
Tue, 21 Nov 2017 18:18:19 GMTHi all! I ran a correlation study with the maximum sample size that was possible, and found some strong significant effects as well as non-signifiant...Hi all! I ran a correlation study with the maximum sample size that was possible, and found some strong significant effects as well as non-signifiant effects. I'm now trying to ascertain whether the sample size was appropriate.

I ran a post-hoc power analysis, and found output parameters ranging from .59 for the variables with the lowest correlation coefficients that were still statistically significant, to .9 for the highest coefficients. I'm inferring from this that the study was under-powered, but I've been reading that post-hoc power analysis is not recommended.

Any other ideas as to how I can check whether the sample size was appropriate, retrospectively?

Many thanks!
]]>Psychology Statisticsfelixghttp://www.talkstats.com/showthread.php/70802-Assessing-sample-size-after-data-collection