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GregMcMahon
GregMcMahon
Level IV

Matched pair analysis with categorical responses

Created: Oct 24, 2020 07:04 AM  |  Last Modified: Jun 8, 2023 5:23 PM (3647 views)

Hello everyone,

 

This will be straightforward I'm sure. I have 100 rows of data representing individuals. The two columns are binned percentages (0-10%, 11-20% etc.), one for two different years. If the responses were numeric, the matched pair analysis would be exactly what I want. But the responses are categorical so that is out. 

Any suggestions are greatly appreciated!

Best regards,

Greg

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5 REPLIES 5
GregMcMahon
GregMcMahon
Level IV

Re: Matched pair analysis with categorical responses

Oct 24, 2020 07:19 AM (3640 views)  |  Posted in reply to message from GregMcMahon 10-24-2020

Just one other thing to add - it looks like the Agreement statistic may be what I'm after, except I'm more interested in the change and if it is trending up or down.

 

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Mark_Bailey
Staff Mark_Bailey
Staff

Re: Matched pair analysis with categorical responses

Oct 24, 2020 03:16 PM (3616 views)  |  Posted in reply to message from GregMcMahon 10-24-2020

Agreement between ordinal variables is like correlation between quantitative variables.

 

The Cochran Armitage test might be helpful to you, too.

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GregMcMahon
GregMcMahon
Level IV

Re: Matched pair analysis with categorical responses

Oct 24, 2020 03:44 PM (3609 views)  |  Posted in reply to message from Mark_Bailey 10-24-2020

Thank you Mark!

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GregMcMahon
GregMcMahon
Level IV

Re: Matched pair analysis with categorical responses

Oct 24, 2020 03:48 PM (3605 views)  |  Posted in reply to message from Mark_Bailey 10-24-2020

Hi Mark,

 

For the Cochran-Armitage, are you  suggesting I recode the percentage bins to 1,2,3..and make it an ordinal scale?

Thanks again,

Greg

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Mark_Bailey
Staff Mark_Bailey
Staff

Re: Matched pair analysis with categorical responses

Oct 24, 2020 03:53 PM (3597 views)  |  Posted in reply to message from GregMcMahon 10-24-2020

I thought it was already ordinal. The bins as you originally described are find, just change the modeling type to ordinal and make sure that the value orders are correct. If they are not correct, then add the Value Order column property and specify the correct order.

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