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I assessed two groups with a pre and post test but didn't identify each test so I don't know which test belongs to each person. I do know which is pre and which is post though. Can I still use a hypothesis test and if so, which one?

gung - Reinstate Monica
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Kathleen Emerick
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  • Please provide more details about what you are testing for, what do you measure, your sample sizes, your experimental design, etc. – usεr11852 Mar 18 '17 at 21:58
  • @usεr11852 I asked 8 students to rate themselves on a scale of 1-10 with 10 being most skilled, I then taught them all day and asked them to rate themselves again post-class but I did not collect names so I dont know who's pre or post test is whose. I want to test if the post class group feels more skilled now that they had my instruction. – Kathleen Emerick Mar 18 '17 at 22:10
  • @gung: You added the paired-data tag but is this setting truly paired? (I accept that the data "should be" paired but I am uncertain if they should be analysed as paired here.) – usεr11852 Mar 19 '17 at 00:14
  • @usεr11852, we don't know what the pairing is, but the data are nonetheless paired. Moreover, I think the tag is appropriate here to categorize this question. – gung - Reinstate Monica Mar 19 '17 at 01:02
  • @gung: Sorry, I probably misexpressed myself. I agree that the tag is relevant, my query was if the data could be analysed as paired in the current settting. – usεr11852 Mar 19 '17 at 11:36
  • That's the whole question, @usεr11852. But the data are actually paired whether the answer is yes or no. – gung - Reinstate Monica Mar 19 '17 at 12:04
  • @gung: Well, I answered "no" on that matter but if you have a different opinion I would be interested to know! :D – usεr11852 Mar 19 '17 at 13:41

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