Hey there Sign in to join this conversationNew here? Join for free

What type of statistical test to use ?

Announcements Posted on
    • Thread Starter
    • 0 followers
    Offline

    ReputationRep:
    Hey i am a currently working on my university dissertation and am not strong when it comes to statistics, i would just like to ask whether i am using the correct statistical tests to analysis data in my experiment.

    My experiment is looking at the effects of music ( violent vs non violent ) on stress scores. Participants will compete a stress questionnaire , listen to either a violent or non violent piece of music and then complete the questionnaire again.

    So to analysis this data i will use 2 paired samples t tests ? (One looking at the difference in the two test scores in the violent music condition and one looking at the difference in the two test scores in the non violent music condition).

    The second part of my experiment involves the participants completing a cognitive face recognition task designed to measure aggressive cognition. For this i will carry out an independent samples t test to look at the difference in aggression scores across the two groups of participants?

    Thank You in advance
    Andrew
    • 3 followers
    Offline

    ReputationRep:
    What numerical values for the second test will you collect?
    • 1 follower
    Offline

    ReputationRep:
    That seems about right

    As a general rule, t-test when comparing means.
    • 32 followers
    Offline

    ReputationRep:
    (Original post by andrew1992)
    Hey i am a currently working on my university dissertation and am not strong when it comes to statistics, i would just like to ask whether i am using the correct statistical tests to analysis data in my experiment.

    My experiment is looking at the effects of music ( violent vs non violent ) on stress scores. Participants will compete a stress questionnaire , listen to either a violent or non violent piece of music and then complete the questionnaire again.

    So to analysis this data i will use 2 paired samples t tests ? (One looking at the difference in the two test scores in the violent music condition and one looking at the difference in the two test scores in the non violent music condition).
    For the first part, I think it would be better to use a 2 x 2 independent groups ANOVA, rather than t-tests.

    Your two factors would be 1) Music, which has two levels - violent and non violent, and 2) Exposure, which has two levels - before and after. Then once you've run your analysis, you would record main effects and interaction effects, saying whether they're significant or not.

    That's how I'd do it anyway, but if I were you I'd double check with your project supervisor if you can.

    You need to be more clear about what you're doing for the second part.

Reply

Submit reply

Register

Thanks for posting! You just need to create an account in order to submit the post
  1. this can't be left blank
    that username has been taken, please choose another Forgotten your password?

    this is what you'll be called on TSR

  2. this can't be left blank
    this email is already registered. Forgotten your password?

    never shared and never spammed

  3. this can't be left blank

    6 characters or longer with both numbers and letters is safer

  4. this can't be left empty
    your full birthday is required
  1. By joining you agree to our Ts and Cs, privacy policy and site rules

  2. Slide the button to the right to create your account

    Slide to join now Processing…

Updated: July 20, 2012
New on TSR

Talk about SQA results day

Join the chat ahead of grades coming out on Tuesday

Article updates
Reputation gems:
You get these gems as you gain rep from other members for making good contributions and giving helpful advice.