+ Reply to Thread
Results 1 to 3 of 3

Thread: chi squared

  1. #1
    Points: 4,996, Level: 45
    Level completed: 23%, Points required for next Level: 154

    Location
    Edinburgh
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Question chi squared




    I need to find the best type of analysis to compare whether people who say they would use a product are influenced by a characteristic. I have data that indicates yes or no for the buying part and yes or no for whether they think it has a certain characteristic. For each characteristic I have grouped in into pairs yy, yn, ny and nn and thought a chi square would do the trick by getting the result for each characteristic and comparing them - but there is a very high number of no-no for each characteristic and i'm not sure of the effect that would have. Any help on whether this matters or whether there is a better type of analysis to use would be gratefully received
    Thanks
    Shona

  2. #2
    TS Contributor
    Points: 17,636, Level: 84
    Level completed: 58%, Points required for next Level: 214
    JohnM's Avatar
    Posts
    1,948
    Thanks
    0
    Thanked 6 Times in 5 Posts
    Shona,

    Yes, a chi-square test of independence "should" work here, but if one of the cells in the table has a VERY high frequency, it may not follow a chi-square distribution.

    You can try Fisher's Exact Test for 2x2 tables. An interactive web page that calculates it is here.

    John

  3. #3
    Points: 4,996, Level: 45
    Level completed: 23%, Points required for next Level: 154

    Location
    Edinburgh
    Posts
    2
    Thanks
    0
    Thanked 0 Times in 0 Posts

    thank you


    many thanks indeed

+ Reply to Thread

           




Similar Threads

  1. Goodness of Fit , R squared or Chi squared?
    By TheDuck in forum Statistics
    Replies: 2
    Last Post: 11-17-2010, 02:21 PM
  2. Replies: 2
    Last Post: 08-11-2009, 10:41 AM
  3. chi-squared appropriate?
    By kathmandu2008 in forum Statistics
    Replies: 0
    Last Post: 11-17-2008, 01:08 AM
  4. Chi-Squared help
    By Zell49 in forum Statistics
    Replies: 2
    Last Post: 04-25-2007, 07:52 PM
  5. eta squared vs partial eta squared
    By Nin in forum SPSS
    Replies: 1
    Last Post: 08-12-2006, 11:14 PM

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