# Thread: Beginner Stats: which t-test should I use for these scenarios?

1. ## Beginner Stats: which t-test should I use for these scenarios?

I have been asked to run t-tests in a dataset for the following two scenarios:

1. Test whether people with a masters degree watch less television than those with a high school degree

2. Test whether women or men have had more sexual partners

Initially I ran (1) with an independent and (2) with a paired samples. This is because I thought level of education and TV-watching were unrelated, whereas gender and sexual partners might be related.

However, upon reviewing why the tests are run, I actually think that I should be running (1) with a paired samples and (2) with an independent samples. This is because (1) examines two related samples (two samples with different levels of education) and (2) examines two independent samples (women and men). Can someone let me know if I am on the right track?

2. ## Re: Beginner Stats: which t-test should I use for these scenarios?

hi,
paired means that you can link one measurement from the first group to exactly one measurement from the second group. E.g. if you had data on the same persons from the time time they had a high school degree and later after the masters - you could use a paired test, the link being the person.

I dont see a way to link data in either case.

regatfs

3. ## The Following User Says Thank You to rogojel For This Useful Post:

groverdot (09-20-2017)

5. ## The Following User Says Thank You to Dason For This Useful Post:

groverdot (09-20-2017)

6. ## Re: Beginner Stats: which t-test should I use for these scenarios?

Ah, I see. Thank you both - I really appreciate this!

I guess it is the notion of linkage that is/was confusing me. If I'm understanding it correctly now, it's neither whether the two variables (e.g. # of sexual partners vs. sex) are related, nor is it whether the levels within the variable are related (e.g. high school degree vs. master's degree). Rather, it's whether the samples themselves are related somehow - in the case of (1), it would be need to be the same people obtaining both the high school and then the master's degree.

To follow-up, my professor mentioned the possibility of using paired samples t-tests in matched paired designs with an experimental group and control group. Could you treat (1) in that way whereby those with the master's degree are seen as the experimental "treatment" group and the participants with the high school degree are seen as the "control"?

 Tweet

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts