1. J

    Is a Fisher's Exact test in a 7x9 contingency table feasible?

    Hello all, I have a question regarding the use of SPSS (i.e. its capability) to execute a Fisher's Exact test for large, sparse RxC contingency tables. I would like to test whether or not a certain correlation exist between my rows (diagnostic groups) and columns (laboratory tests) (see below)...
  2. O

    Mann-whitney U test??

    What if I have two independent groups. In one of the groups age is normally distributed and in the other group age is not normally distributed. Which test should I use to analyze if there is a significant difference between the groups? Mann-whitney U test assumes both groups are not normally...
  3. Z

    Help with question: What test should I use?!

    Hello. I am trying to analyse whether the weight of my patients (in 3 different treatments) has any impact on their resistance to electric current. The weight is normally distributed. I use SPSS, and I am choosing to analyse a the data using a one-way ANCOVA, since I have 1 independent...
  4. H

    Help with my research project

    Hi everyone, Currently I am working on a research project in the Netherlands, while studying Pharmacy. My study consists of 2 groups of different sizes. group 1: 50 patients (patients using the drug metformin) and group 2: 100 patients (control group, non diabetic). I want to investigate if...
  5. S

    Performance review

    I have a dataset with a lot of performance reviews. Reviewers have answered 20 questions (composing five different 4-item scales) about 7 other people. Consequently, every respondent is also reviewed by 7 others. Now, we aim to do a couple of tests to check the quality of the survey, like: -...
  6. S

    Analysis in alcohol usage relapse

  7. D

    Creating a time variable in SPSS

    I have just started with my research project. My supervisor asked me to do some simple stuff with the dataset in SPSS. Unfortunately, I don't have a clue of what I'm doing in SPSS. Could anyone help me? I'm supposed to do a mixed linear model analysis, but right now I'm just preparing the...
  8. E

    How to JOINTLY perform multiple imputation with normal dataset and multiple response sets in SPSS? And right kind of Cluster analysis for binary data?

    down votefavorite (Unfurtuntely i can't upload the excel file ,can't find the button) Please im begging anybody’s help because im an mba student in global hospitality and tourism management and my teacher is unable to help I have purchase the spss premium version so I can use all its features I...
  9. A

    Mediation analysis results write up

    Hello everyone! I am currently writing up my results from my moderation analysis and I am having some trouble interpretting what the results mean (I am new to SPSS! :( ) My hypothesis is to test whether social comparison has an impact on self esteem levels through the use of social media. So...
  10. L

    SPSS independent t test problem

    Hello, I am trying to work URGENTLY on an independent t test. However, the results shows me that "my independent sample table is not produced". And it said that "t test cannot be compute as there are missing data" which I am so sure that nothing is missing. Can anyone tell me what is my...
  11. P

    Logistic Regression Models Without Main Effects?

    Hi there, I am building logistic regression models measuring human behaviour, which consist of categorical variables: demographics, conditions, and interactions between the demographics and the condition variable. The big issue is that as per my theory tested I am not interested at all in the...
  12. A

    How can evaluate the significance of unbalanced variables?

    We have a questionnaire which has a question with three options: "a", "b", and "c". All participants are allowed to choose one of these three options. "a" represents the condition "X" and, "b" and "c" both represent the condition "Y". Our goal is to compare the condition "X" with the condition...
  13. F

    A little clarification on logistic regression in SPSS

    Hi! I need some clarification. I have a dichotomous outcome (not cancer/cancer) and I want to analyze the influence of 5 different variables (2 continous and 3 categorical) in predicting one of the outcomes (cancer). For that I ran a binomial logistic regression on SPSS and I got the following...
  14. J

    Trend analysis

    In a period of 14 years we collected MRIs on different patients. For all the MRIs I have a variable on which day after diagnosis the MRI was made. I want to know if MRIs were made much faster at the end of the study than at the beginning --> so I want to know if there's a trend. How would one do...
  15. I

    How to analyse - [SPSS] NPI+Gender IVs on Attractiveness Score DV

    Hi there, I have been struggling with stats for a while and have turned myself on my tail, any help would be super appreciated. Research is looking at Narcissism Score (NPI) and attractiveness, how would I analyse this in SPSS? I want to look at the relationship the two IVS have on Attract...
  16. H

    How to change the alpha level in SPSS?

    I have to do a Mann-Whitney U test in SPSS and it has to be alpha = 0.01, one-tailed. I know the default is 0.05, but I don't know how to change it to 0.01 in SPSS (for Mann-Whitney U test). Is it even possible?
  17. S

    SPSS interpreting change scores, am I doing it right??

    I had to calculate some change scores for my dissertation. I didn't even know what they were until my prof told me to do that in addition to my other statistics. I tested 2 groups, 1 got supplements the others a placebo and tested them before and after taking them. They filled in mood and stress...
  18. S

    Mixed Effect Model in SPSS

    I keep getting error messages:' The levels of the repeated effect are not different for each observation within a repeated subject.' Can anyone offer me some advice whether I can perform Mixed Effect Model in SPSS with my data or I have organised my data correctly? I have two groups of...
  19. S

    How can I make a chart with the percentages/values labelled?

    I have tried making graphs will graph-builder. For some bizarre reason cannot get the charts made up with he percentages/values labelled. I know it sounds simple but its not obvious to me. Would really appreciate any help. BW
  20. S

    Error messages for Mixed Effect Model in SPSS?

    I keep getting error messages:' The levels of the repeated effect are not different for each observation within a repeated subject.' when performing Mixed effect model in SPSS. I have two groups of participants X and Y who performed two sets of tasks i.e. A and B. Group 1 has 12 subjects...