# Questions tagged [spss]

IBM SPSS Statistics is a statistical software package. Use this tag for any on-topic question that (a) involves SPSS either as a critical part of the question or expected answer and (b) is not just about how to use SPSS.

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### Can Generalized Linear Mixed Models Perform Ordinal Logistic Regression? [closed]

I have some outcome variables that were measured on a 1-10 discrete scale in a cross-sectional repeated measures design that requires multi-level modeling. I have been advised to use Generalized ...
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### What methods to use in pre and post testing?

I am currently running a pre- and post-intervention study. My hypotheses are if the intervention has an effect and if personality traits moderate the effect of the intervention. I have an initial ...
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### Imputation Missing data

I have a longitudinal data set with 2 dependent variables (couple) - a husband and a wife. There were 2 waves for the husbands and 3 waves for the wives. Since there is a lot of missing data, I ...
1 vote
24 views

### Missing data in longitudinal study; SPSS; Python

I have a dataset in psychology field with 3 measurement points (longitudinal data), 4 questionnaires, and about 120 participants. There is a lot of missing data in this dataset. I need to clean the ...
12 views

### ARIMA Models Modifications [duplicate]

I'm current working on a project. This project specify in using ARIMA Models to predict the future value of variable 'cases'. After differencing the time-series to make it stationary, here is the ...
69 views

### Moderation coefficient in linear mixed models SPSS - interpretation

My model: IV: extroversion (5 point likert) Moderator: Comepetence (values 1-5) DV: Offer (values 5 to 15) Hypothesis: The negative relationship between Extroversion and offer is moderated by ...
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### Pearsons Correlation more than one Variable

I have a question about the correlations (stats) I would like to know how the presentation assessments of students correlate to those of experts. 30 students and 3 experts evaluated a presentation ...
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38 views

### Working with Value Labels and numerical values in SPSS to create meaningful regressions [closed]

I am writing my master thesis on the effect of AI surveillance on the relationship between locations and the user perception of safety and privacy. I created a survey that asked respondents safe and ...
69 views

### Multiple logistic regression with ordinal predictors

I'm looking for resources on general guidance for how to perform and interpret multiple logistic regression using SPSS, with ordinal predictors. I have 2 ordinal predictor variable. Each ordinal ...
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### Factorial anova results differ in R and SPSS

I am trying to run factorial anova in both SPSS and R but got different results. I convered the iv's into factors too. Any suggestions? ...
20 views

### Logistic Regression - categorical predictors [duplicate]

I'm looking for resources on general guidance for how to perform and interpret multiple logistic regression using SPSS, using categorial predictors. I have 2 categorical predictor variable. Each ...
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### SPSS mixed effect moderation output

in my conceptul model I want to study if Extroversion trait (Extro IV: likert scale) effects initial offer in a negotiation (Offer DV: any number between 5 and 15), and how does trust moderate this ...
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1 vote
34 views

### Mediation package for R vs Hayes' PROCESS macro?

I am a beginner to mediation, and I am curious about the differences between the mediation package for R and the Hayes' PROCESS macro for R. Do these software work with similar principles or would ...
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### How to compare the mean of different variables?

I am working on factors causing culture shock. I designed a questionnaire regarding 7 different factors which could be the cause of culture shock. I calculated the mean of each factor by averaging the ...
34 views

### Interpretation of negative coefficients in ordinal regression in spss

I have built an ordinal regression (logit) in the spss for data in the likert scales. I put the independent variables into factors, not covariates. As far as I understand, this should be done with ...
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### Multiple imputation of longitudinal data in SPSS

I'm attempting to analyse a longitudinal, retrospective dataset with measurements at various time-points. The data-set has a significant amount of missing data, up to 30% for the main outcome variable,...
54 views

### SPSS Multicollinearity Binary Logistic

Just a quick one - I am running a binary logistic regression in SPSS and I wanted to check the VIF for multicollinearity. How do you do this when the dependent variable is binary - is it a case of ...
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### Negative Binomial SPSS Error

I was running a negative binomial regression in SPSS and received the following message: The maximum number of step-halvings was reached but the log-likelihood value cannot be further improved. Output ...
• 123
71 views

### Regression for Likert scale SPSS

I have taken a survey. Dependent variable is on Likert scale (1-5). Independent variables are also on Likert scale 1-5. What kind of regression should i better use? I thought about multinomial (or ...
32 views

### Is this suitable for Negative Binomial Regression?

I am using SPSS to run a negative binomial regression for my research project. My dependent variable is 'Number of Days Went to the Gym' in a week, and my independent variable is income (along with a ...
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229 views

### SPSS R^2 for Negative Binomial

I am running a negative binomial regression in SPSS and wondered if there is any way to display R^2 statistics, as would be the case if binary/linear regression was conducted?
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1 vote
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### Significant index of moderated mediation but no significant interactions of moderators

I ran Hayes process Macro 8 in SPSS. In my results below, you'll see the index of moderated mediation is significant; however neither of the interactions in this model are significant. Model is below. ...
1 vote
19 views

### SPSS computation of the 2-sided bootstrap p-value

In the SPSS Statistics Algorithm Manual Version 29 (p.132 in the pdf) the computation of the two-sided p-value for the bootstrap procedure is described as follows: Sadly, because of different RNGs, I ...
160 views

### Testing Assumption of Linearity for Multinominal Logistic Regression

I have a nominal DV (0 through 3). IVs are all continuous. I'm trying to test the linearity assumption, however I can't run the logistic regression function in SPSS with the LN IV variables because of ...
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### An contradictory negative edge

Recently I have conducted a experiment exploring the relationship between stress and mind wandering (MW). When I analyzed the data via SPSS, I found an unexpected negative edge between two variables. ...
189 views

### When is it appropriate to report the results of a within-subjects contrasts table of a repeated measures ANOVA?

I've just run a repeated measures ANOVA in SPSS, with one 3-level within-subjects variable, and one 3-level between-subjects variable. Is it correct to assume that one should be reporting the main ...
1 vote
43 views

### Identifying an outlier nominal group different than the norm, based on an ordinal dependent variable

As part of my graduate thesis, I've measured the satisfaction levels of a couple hundred respondents across 7 districts of a city about a local public service, using a 4-point ordinal Likert scale (...
67 views

### In a repeated measures ANOVA, is the pairwise comparison result still valid if sphericity is not assumed?

For the pairwise comparison, the p value is less than 0.001. However, the p value for Mauchly's test of sphericity is also <0.001. I believe that SPSS automatically applies the Greenhouse-Geisser ...
66 views

### Principal components analysis missing data SPSS

I have a large data set (27k) There are 63 variables of interest. I attempted PCA as a dimensionality reduction strategy. The items are scored on different metrics ranging from dichotomous variables ...
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1 vote
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### Need help deciding about regression or appropriate statistic [closed]

I need to check if presence/absence of repetitions on a verbal test occur due to frequency of external distractions, frequency of self-distractions, or a count of words spoken from original word to ...
24 views

### Age-standardized survey results with complex sampling in SPSS

Apologies if I am missing something obvious with this question, but I have dug around online a fair bit and can't quite seem to find the answer I am looking for. At my organization we have health ...
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50 views

### PROCESS macro for SPSS - output includes values of the DV which are outside of scale range

I'm running a moderated moderation model (model 3 of PROCESS macro for SPSS) in order to explore a three-way interaction, with one independent variable, one dependent variable, and two moderators. I'm ...
139 views

### Simple mediation analysis in PROCESS 4.2 in SPSS. The outcome variable is binary, the mediator is continuous and the IV is binary

In the first model, the IV (X) significantly predicts the mediator (M). In the second model, the mediator significantly predicts the outcome variable (Y) but the IV (X) does not predict the outcome ...
33 views

### Correlation Metric for Investigating Relationship Between two independent variables

I'm working on a study in computer engineering where I'm analyzing the relationship between the dynamic execution count (frequency) of instructions and the corresponding data error rate (SDC) in a ...
113 views

### Ordinal Logistic Regression SPSS Interpretation

I have data from a questionnaire study structured like so: Age - Ordinal (18-24, 25-34, 35-44, 45-54, 55+) Gender - Nominal (Male, Female) AnxietyType - Nominal (Self-diagnosed, Professionally ...
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35 views

### Path analysis: Mediation and linear regression reporting

Let's say I'm testing this relationship in a path analysis in SPSS AMOS to answer these 2 research questions: Does worker's moral have a significant positive relationship with organisation ...
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1 vote
75 views

### Mixed factorial analysis in R

I have data that looks like this: Here the first column is a factor with 2 levels (0 and 1) that represents whether a person played 2d game first or 3d game first (basically order of play). The last ...
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449 views

### Multilevel MIXED Linear Regression with pseudo-repeats: Why designate "Repeated' variables, while "Subject ID" already identifies all repeats?

I am bewildered by multilevel mixed-models that have pseudo-repeats. I have difficulty understanding which variables should be considered REPEATED within a mixed-...
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270 views

### Cronbach alpha for non-Likert & Likert survey

I have a thesis ongoing and I have a survey that needs for reliability testing. I was advised to do a Cronbach's alpha test. My survey consists of two parts: Part 1: All questions have varying number ...
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1 vote
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### Moderated Mediation

Does anyone know the process model # for a moderated mediation, where the independent variable (in this diagram A) moderates the effect of the mediator (B) on C? I attached a diagram below. ...
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