independent t-test

  1. J

    HELP! SPSS - Independent T- test - t cannot be computed because at least one of the groups is empty

    Hello, I have a question regarding the independent t-test in SPSS. I already run a frequency test which does not show any data missing. What can I do to find the mistake? I want to analyze if there is a difference between the answers of the male and female population. Help is very much...
  2. I

    How would you enter this data?

    I have to do a t-test (it doesn't say which type of t-test) in SPSS about the olfactory scores of smokers and non-smokers. For smokers, we are given the scores so I know how to enter that in SPSS. For non-smokers, we are not given the scores, it simply says “On a test of olfactory sensitivity...
  3. C

    SPSS: The Independent Samples table is not produced.

    Hi everyone, I am desperately trying to get my head around the reason why I cannot run an Independent t-test using for the variables "Height" and "Gender". Every time I get a warning message saying "The Independent Samples table is not produced". Please find attached various print screens of...
  4. S

    Need simple help in a hurry!!!

    Hello, I'm using SPSS 19 where i need to calculate the significent value between groups. I really need help becouse i can't figure it out by myself!! The situation: I have only numbers: 30 results is the total population 2 results are excluded 25 results are good 2 results are...
  5. 4

    Independent T-test (upon 2 groups I have formed) prior to a Mixed ANOVA

    I am using a 2X3X4 design, which has the following ivs: Social Anxiety Scores(formed two groups,essentially high and low scores) 3 emotions and 4 gaze directions. I need to test if the Social Anxiety groups are essentially different(before I do my mixed anova). I thought I could do this through...
  6. L

    Seeing a trend in my SPSS T-tests, is this normal?

    Hello all. While attempting to complete my homework for my Stats class on SPSS I noticed on 3 out of the 4 problems I've done so far, I have gotten .000 for the p-value. Two were Independent T-tests and the other was a One-sample T-test. Is there something that I'm missing or could be entering...
  7. Z

    Please help! We've got lost in the wild jungle of T-TEST!

    Hello, We have been working on an assignment of t-test analysis, but the data we got look very puzzling and perplexing. I really need your help! The task is to analyze a set of t-tests from a hypothetical study (1 paired t-test and 3 independent t-tests). But, the problem is... the set...
  8. W

    Independent t-test without raw data?

    I'm desperately attempting to finish my Master's thesis by this Friday and graduate. I am NOT a stats or math person and have always stuggled with these subjects. I am using secondary data for my thesis and the summaries and totals, etc. but not the raw data. The sample size is nearly 38,000...