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IBM SPSS Statistics (formerly SPSS, i.e. "Statistical Package for the Social Sciences") is a proprietary cross-platform general-purpose statistical software package. [For SPSS Modeler, use 'spss-modeler' tag.]

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Intuitive explanation of the Wald Chi-Squared Test

I am having trouble understanding what the Wald Chi Squared test is used for intuitively. SPSS uses the Wald Test (type III) in the "Tests of Model Effects" box when I run my GEE models, but I don't ...
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14 views

Stuck on which statistical test to use…? (SPSS)

I’m currently analysing some data that I have collected in my postgraduate research and I am struggling to nail down which statistical tests I need to use. I conducted a study on treatment seeking of ...
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1answer
11 views

Two-way repeated measures anova using a “categoryish” independent variable?

I am trying to run a two-way repeated measures anova in spss but i think my data needs restructuring. I have run anova's in spss before so i am familiar with process. The problem is that when i have ...
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7 views

Is mixed models a better choice comparing to ANOVA? (SPSS)

I have two groups in which I compare two times (before and after treatment). At first, I tried an repeated measures ANOVA and observed significant difference between groups. However, I have the ...
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6 views

Covariates in ANOVA using SPSS [on hold]

I did a repeated measures ANOVA in SPSS. I would like to know if it is correct to place each covariate, one by one, in the field "covariables" to control possible dependent variables that change the ...
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18 views

SPSS Mean does not make sense [closed]

I am running a t-test on a independent variable and dependent variable that is binary (yes/no). My results for the first group (independent variable) are mean = 1.13 for example. This doesn't make ...
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12 views

Type of Validity? [closed]

In SPSS, what type of validity is derived from the anti-image correlation matrix in exploratory factor analysis? Thanks in advance.
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1answer
27 views

Interpreting ordinal regression with categorical predictors in SPSS

I am running an ordinal regression in SPSS, with a categorical predictor (9 neighbourhoods) and an ordinal dependent (satisfaction, with three levels: 1 '(very) satisfied' 2 'not satisfied, not ...
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11 views

Adjust correlation for categorical variable

In setting up a model that predicts a continuous outcome variable based on a continuous input variable, I was wondering whether I could adjust a (partial) correlation for a categorical variable (e.g., ...
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40 views

Interpreting results of ordinal logistic regression - ordinal dependent variable with 5 levels and continuous predictor variable

Using SPSS, I have run a generalized linear mixed model for repeated measures longitudinal data on an ordinal target variable: duration of hallucinations with levels of 0= "N/A" (no hallucinations), 1=...
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1answer
24 views

Two between factors in repeated measures ANOVA

"Can i put two binary variables in the between factors part of the repeated measures ANOVA?" Participants: Patients, Healthy Controls Task: All participants do a task (Pre intervention Score). Then ...
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0answers
6 views

GEE model issues and interaction interpretation

I am doing my first data analysis and I am confused with some results - let me know if you need any more information to answer this (and thanks a lot!)! In our experiment we collected binary (accept/...
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0answers
26 views

Should this be a one-way repeated measures anova?

I'm a new phd researcher and i just completed my first set of experiments. Participants played the same game using three different control mechanisms. In the game they had to complete a series of ...
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0answers
17 views

GLMM for non-normal nested data (SPSS)

I have a dataset which is quite complicated to me. The data is nested; multiple measures within the same person. Therefore no ANOVA, but GLM/GEE. However, my independent variable is not normally ...
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28 views

Effect size intepretation

-Within-subjects design -30 subjects, counter-balanced. -Free recall study (are concrete words better for memory than abstract words) -Two minute distraction task after memorization and before recall -...
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0answers
5 views

Alter type command from string to numeric changes values [duplicate]

Here is the situation ; I'm trying to convert a string (a18) to a numeric (f18.0) variable using the alter type command of SPSS. My problem is the following ; the result is not exactly the same from ...
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Binary logistics regression output interpretation [duplicate]

In binary logistics regression output, how do I interpret a variable with coefficient 0.00 and Exp (B) 1.00 and Significance 0.12?
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12 views

How to Interpret Parameter Estimate Output from SPSS [duplicate]

Dear Community Members, Given the outputs of the SPSS analysis, how can the exp (B ) and Beta values be interpreted in terms of odd ratio ? and in relation to how the independent variable affects the ...
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1answer
46 views

Getting 1-tailed p value from a 2-tailed p value in SPSS v23

For the purpose of my research, I use IBM SPSS and would like to get paired t-test result with a 1-tailed p-value. This video states how to derive a 1-tailed p-value from 2-tailed p-value, however, ...
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1answer
24 views

Calculating effect size + 95 CIs for median differences (SPSS)

I've got a mixture of parametric and non-parametric data, with a repeated measures design; measuring animal behaviour in three different treatments. For parametric data, it's simple enough calculating ...
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1answer
15 views

5-way significant interaction with mixed-ANOVA, how to interpret!? (SPSS)

I am analysing results from a study which was a 2 (stimulus type) x 2 (distance) x 2 (speed) x 2 (cardiac cycle) x 2 (grouping variable-between subjects) mixed ANOVA, all of the factors have 2 levels ...
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0answers
17 views

Questions about Bonferroni and power statistics

Thanks in advance for taking the time to read my questions. In a project of mine, I have performed a vast series of regression analyses (one for each measuring point, if which there are many). With ...
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0answers
13 views

BCa intervals in Pairwise comparisons SPSS

In SPSS after a Two-way ANOVA analysis I have performed Pairwise Comparisons for main effects. The fact is that BCa intervals are not inversely the same when is comparing for example A-B (-2.156,5.613)...
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28 views

2 x 2 design. Interaction (moderation effects)

I ma using 2 x 2 design wherein both IDV and moderator variables are categorical along with some continuous variable (control). I want to test the hypothesis for main effects and interaction effects ...
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1answer
28 views

ANOVA unbalanced design in SPSS (or R)

I have a problem with an unbalanced ANOVA design and wasn't able to solve it through research on the Internet yet. In a lot of questions, when people are talking about their unbalanced designs, it's ...
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37 views

How to statistically describe the right answer of a multiple choice question?

Participants need to identify the right strategy of several storyboards through a multtiple choice questions (7 possible answers). I collected 130 answers and now I want to show the significance that ...
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14 views

Homoscedasticity test for repeated measures ANOVA, SPSS

My experiment has three treatments, looking at different measures of animal behaviour in response to each treatment. Firstly, is testing for homoscedasticity for a ...
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48 views

Simple slopes in logistic regression [closed]

One of my students is trying to do a follow-up simple slopes analysis for a logistic regression. Her study is investigating the moderating effect of body satisfaction on the relationship between ...
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0answers
11 views

How to check categorical explanatory variables for multicollinearity in SPSS?

I've read on some forums (i.e ResearcGate) that it can be checked by activating "collinearity diagnostics" function as part of a multiple linear regression model. Then I just need to choose a random ...
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0answers
10 views

C&RT Rule Set missing rules?

I configured a C&RT 2-class classifier model from a dataset and then saved the results to a table that I exported to a server running SAS. I used "Generate->Rule Set" on the C&RT model to see ...
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1answer
23 views

Correlate nominal/metric data with ordinal data?

I am currently finishing my bachelors thesis and have a couple of questions regarding correlation in spss. I have a questionnaire that generates metric data, nominal data and ordinal data. I used ...
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4answers
87 views

Combine Likert Scale with accuracy of responses

I am trying to transform my experiment results into variables and I am having some issues. Data: One likert scale 1-9 ( 1 = " I am sure I havent seen this before” 5 = "Not sure” 9 = “I am sure I’ve ...
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1answer
22 views

Logistic Regression in SPSS: Step 0 is non-significant but Step 1 is significant? Help interpreting the output [closed]

Hey I'm doing a logistic regression looking at predicting if someone will commit one type of crime or another based on 11 ordinal variables (each variable is 0-2). I'm having some trouble interpreting ...
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37 views

Dealing with Heywood Case in EFA using SPSS

I conducted a survey with 10 Likert scale questions. Now, I am running a factor analysis in SPSS using Maximum Likelihood Estimation. Data Description: Sample size = 30 Number of Indicators = 10 ...
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34 views

Mixed-Design ANOVA Confusion: Do I separate my treatment Column?

In this particular study, I had 40 experimental subjects which were randomly allocated to 2 treatment groups. After the initial treatment, each where randomised to receive 2 other treatments. So the ...
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Multilevel Analysis -Using gender as a Covariate

I've got a question about multilevel analysis for longitidinal data. I'm using mixed models in SPSS and I'm interested in the cross-level-interaction between condition (Level 2) and time (Level 1), to ...
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42 views

Poor model fit - Difference between SEM and MLR

For a study I am researching a quite simple research model (7 IVs - 1 DV), in which I am not interested in underlying relations between the IVs: the relation between the IVs and the DV is all that ...
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What are the main differences between SPSS Cox Regression methods?

Simple question: Can someone explain me what are the main differences between the various stepwise methods I can find under the Cox Regression analysis in SPSS (i.e., Conditional, Logistic Regression ...
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1answer
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Comparing neuropsychological and personal variables between 2 groups

I collaborated in a study about cognitive training which had 2 groups of participants. First of all, I would need to compare if the personal variables (age, years education...) and neuropsychological ...
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Inferring risk from dataset with repeated measures

I'm quite new to repeated measures analysis. I have a dataset with participants who all underwent an intervention which carries a risk for a particular side-effect. The occurrence of the side effect ...
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0answers
21 views

Psuedo random sampling of unbalanced (?) repeated measures

I performed an analysis where I subjected participants to 36 trials. A light cue was used to get them to step to the left or the right (stepDir: L or R). Left and right steps were repeated 3 times ...
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1answer
39 views

calculating p-value for bootstrap indirect effect?

I used SPSS HAYES macro to test for indirect effect, and got the results as below. I used bootstrap method to derive confidence intervals, and it seems the indirect effect is significant at p<.05 ...
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31 views

How to find variance explained by each predictor in multiple regression using SPSS

I have run a multiple regression in which the model as a whole is significant and explains about 26% of the variance (Adjusted R^2=0.261). I have 4 categorical predictors (A has 3 levels, B has 4 ...
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1answer
27 views

What is the appropriate statistical analysis?

We are doing a study where we have measured the contractile properties of the lumbar spine muscles. Each individual (N=34) was tested at 12 different sites along their spine. 6 sites (vertebral levels)...
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Tests of Within-Subject Contrasts Mixed ANOVA SPSS

I have a 2 x 3 x 2 design Group (2 levels Typically Developing children and Not Typically Developing children) between subjects Within Subjects Scene complexity (High, medium, low) Language produced ...
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0answers
22 views

Extracting Factor Scores of Latent Variables after CFA in AMOS

I plan to extract the latent variables' factor scores after conducting Confirmatory Factor Analysis (CFA). I will use these factor scores as explanatory variables for my next statistical procedure - ...
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1answer
23 views

Transforming IV food expenditures for logistic regression

For my thesis I made a prediction model for food security using logistic regression (n=210). One of the predictors included in my final model is 'food expenditures'. The independent variable is ...
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0answers
18 views

Converting Mixed Model lme4 R Syntax to SPSS and Probing Interaction

I am running a mixed model logistic regression in R with the following syntax: ...
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53 views

SPSS's Friedman's Two-Way ANOVA by Ranks: Where do the pairwise comparisons come from?

I'm currently trying to reconstruct a significance analysis that I did years ago (when I knew even less about statistics that I do now). I have the strong feeling that what I did was invalid, and that ...
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2answers
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Which test would be appropriate for my data?

I did a questionnaire survey wherein I asked the respondents questions on their saving habits. One of the question had two options, either save formally or informally. These options has categories to ...