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# Spearmans Correlation for dissertation Watch

1. Hey,

Background story,

My dissertation is looking at the how a consumers believability of an advertisement is influenced through high and low credible endorsements.

The questionnaire (one for each advertisement [6 in total], containing 5 questions) used a 10-point likert-scale in a semantic differential fashion. The 5 answers given to EACH advertisements questionnaire was averaged.

I'm planning on using spearmans correlation to analyse the results. I wont be comparing all six advertisements as a whole but rather one-on-one (i.e. Halle compared to halle edit, tiger to tiger edit).

On a side note, i'm ignoring gender and I have one specific age block, so age is also irrelevant.

Questions

1. Is it possible to actually use spearmans? I understand if I was looking at income compared to age, but this, in its simplest is celebrities believability vs non-celebrities believability??

I've spent a good week trying to work this out so everything has turned to mush now, plus i'm teaching myself SPSS so I can use that for an extra bit of credit.

Ok so if Spearmans is fine to use, I then move onto regression which has been a complete disastor! I couldn't even begin to make progress on that.

Cheers if you can offer some help and if anything is confusing, please just ask for a deeper explanation.

I should also state that I havn't had any teaching on stats besides a-levels which was nye on three years ago!
2. I don't think spearman sounds appropriate... Otoh there are online statistical test selectors which will recommend an appropriate test based on your study. E.g. Www.whichtest.info
3. (Original post by otherkid89)
Hey,

Background story,

My dissertation is looking at the how a consumers believability of an advertisement is influenced through high and low credible endorsements.

The questionnaire (one for each advertisement [6 in total], containing 5 questions) used a 10-point likert-scale in a semantic differential fashion. The 5 answers given to EACH advertisements questionnaire was averaged.

I'm planning on using spearmans correlation to analyse the results. I wont be comparing all six advertisements as a whole but rather one-on-one (i.e. Halle compared to halle edit, tiger to tiger edit).

On a side note, i'm ignoring gender and I have one specific age block, so age is also irrelevant.

Questions

1. Is it possible to actually use spearmans? I understand if I was looking at income compared to age, but this, in its simplest is celebrities believability vs non-celebrities believability??

I've spent a good week trying to work this out so everything has turned to mush now, plus i'm teaching myself SPSS so I can use that for an extra bit of credit.

Ok so if Spearmans is fine to use, I then move onto regression which has been a complete disastor! I couldn't even begin to make progress on that.

Cheers if you can offer some help and if anything is confusing, please just ask for a deeper explanation.

I should also state that I havn't had any teaching on stats besides a-levels which was nye on three years ago!
I don't think spearman's would be appropriate. Maybe a t-test? Comparing all 5 questions for halle vs halle-edited-out
4. ahh thats super! thanks guys.

came out with Wilcoxon signed rank test! never even heard of that but i'll look into it, as well as the t-test, which is more familiar!

Thanks
5. Ok so using Wilcoxon just throws everything into place! thank you so much.

Is it possible to undertake a regression analysis?

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Updated: March 31, 2013
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