My classmate once asked my professor this issue on ANOVA for the likert scale and yes they agreed that the test is not appropriate because ANOVA is for interval variables. So, Pearson R is also not an appropriate test for the correlation of ordinal variables as for the rule. There are no special rules for the use of ANOVA and Pearson for the ordinal variables, right? I just followed the panelists’ advice because I want those students to pass their thesis defense. Even if I feel that I violated my learning, I am still not in the position to contest their knowledge because they had been advising theses before I was able to gain my statistical knowledge. It’s like they are veterans already and I am just a fresh bud. It just confirmed my belief that some schools in my country are not providing the students with the right learning. I hope that those in their level will be kind enough to tap these people's backs and enlighten them on the issue. I may be wrong with this so please let me know!
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This creates a problem for me now.
ReplyDeleteI have just completed a survey with a questionnaire mainly consisting of Likert-scale-type questions. I used Pearsons r to analyze the data for predicted correlations because it was the easiest thing to do. In literature many say that this is wrong, but there is no common few of what would be the correct measurement. And then there seem to be schools that even say you have to use Pearsons R. Very confusing!
What I have done to resolve the problem is to print scatter plots for predicted correlations to get a visual idea of what is going on. I hope it's sufficient to get my thesis through.
Cheers!
C.
i am working with my thesis now i felt confused about pearson r or any of those statistical treatment for my hypothesis or for the data collected in my questionaire. i am no expert of numbers nor statstical method but i need help.
ReplyDeleteYou just have to ask your thesis adviser. There are also schools who require students to have a statistician as part of the panel. You can also consult from them.
ReplyDelete