+ Reply to Thread
Results 1 to 2 of 2

Thread: What test to use?

  1. #1
    Points: 4, Level: 1
    Level completed: 7%, Points required for next Level: 46

    Thanked 0 Times in 0 Posts

    What test to use?

    Hi all,

    I am new to statistics.

    Now, I am doing a research but I don't know which test to use. Basically, I have four groups with both positive and negative results. I want to know if there is any difference in the percentage for positive result between each groups.

    Can anyone help me?



  2. #2
    Omega Contributor
    Points: 38,289, Level: 100
    Level completed: 0%, Points required for next Level: 0
    hlsmith's Avatar
    Not Ames, IA
    Thanked 1,185 Times in 1,146 Posts

    Re: What test to use?

    So your null hypothesis is what exactly?

    I am guessing you are thinking about converting negatives to 0s and positives to 1s, then you may be able to compare the expected values, say with chi-sq or Fisher's exact test, if you have small expected cell values. Then if the overall test is significant you can perform pairwise tests to see which groups differ in particular. Can you provide any more context to your research that may help direct our responses?
    Stop cowardice, ban guns!

+ Reply to Thread


Posting Permissions

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

Advertise on Talk Stats