SPSS (Statistical Package for the Social Sciences) is a proprietary cross-platform general-purpose statistical software package.

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16 views

Difference scores in linear mixed models?

I have a question about how to interpret fixed effect interaction coefficients, which appear to be difference scores, in linear mixed models using SPSS. I am looking at the consistency of ...
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3answers
47 views

Cohens d effect sizes

I'm using Cohens d effect sizes as a means of providing a magnitude based inference in a study I'm conducting. I just wanted to clarify if I'm correct here: Anything between .0 and .2 is small. ...
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1answer
9 views

How to deal with the different outcomes between pairwise correlation and multiple regression

I have different results from a correlation table and a multiple regression model. I know that it is an effect of multicollinearity because correlations up to $.474$ exist between predictors, but this ...
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0answers
13 views

working with entire census data of population distribution

i am working on the total population of a state using census data sets, please what statistical techniques can i use to analyse the data to test if the distribution of population within the state in ...
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0answers
38 views

Formatting R output to mimic Stata or SPSS or SAS output [on hold]

It has been my experience that different academic fields have converged to different statistical software apps as their "standard." E.g., in Economics Stata is very common but virtually unheard of in ...
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0answers
10 views

Specifying 'subjects' and 'repeated' options in Linear Mixed Model (SPSS)

This question is probably quite easy to answer for those who work with Linear Mixed Model analysis. My question is the following: I have a repeated measures design, where each participant completes a ...
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0answers
14 views

Exp(b) in multivariate Cox regression

I am trying to interpret the results of a Cox regression. I ran a multiple Cox regression analysis of an categorical variable—heart rate including 5 levels. I added covariates that were also ...
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0answers
9 views

Accessing the xpath for generlized mixed model using SPSS java plugin [on hold]

I am using SPSS(version 22) java plugin and run a generalized linear mixed model. I wan to get the output of the AIC from the generated output. I am not sure what is the xpath of for getting this ...
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9 views

SPSS Comparing means between groups

I am currently working on a project about the performance of Himalayan mountaineering teams. I want to compare differences between these teams on the basis of the mountain they attempt to conquer and ...
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19 views

Custom Tables: How does SPSS treat multi response sets differently from categorical vars?

I have come across an SPSS-specific scenario where I cannot understand how SPSS is calculating its proportions test results. The scenario only takes place when applying t-tests and z-tests on "SPSS ...
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0answers
9 views

How can I ENTER a 4-way interaction in a hierarchical regression blocks in SPSS? [on hold]

I have 4 variables, and I want to compute their interaction in a hierarchical multiple regression. But I do not know how I put main and interaction of variables in blocks of hierarchical multiple ...
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24 views

How do I deal with split samples for conjoint in SPSS?

We ran a survey of a sample of over 4,000 where we asked about 16 cards (product combinations). To combat survey fatigue, we randomly assigned each respondent 4 of the cards, so that every respondent ...
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24 views

Finding trends from ordinal / likert responses

I have two ordinal variables, ranked on a 1-5 Likert scale, and a categorical variable of age groups. What I would like to is extract significant (or determine and identify the existence of) ...
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29 views

Extracting meaningful demographic data from ordinal / Likert responses in SPSS

I'm currently working on the findings of my Masters dissertation where I've defined hypotheses, created a questionnaire, and then testing whether a relationship exists between different ordinal ...
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0answers
16 views

What scale to use for likert data [closed]

I am currently in the middle of writing my dissertation and I have reached the area where I am meant to be analysing the data. I used a likert scale for my questionnaire and now i have got the data ...
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2answers
23 views

How to do test the significant difference of CD4 count less than 350 in relation to different races using SPSS

I have a pool of CD4 count from 0 to more than 1000, and all the CD4 counts are respect to different races. So how to only test the CD4 count less than 350 to different races? To see whether there is ...
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1answer
20 views

How to simplify the SPSS Syntax when repeating functions [closed]

I am using SPSS syntax to run multiple UNIANOVAs for multiple variables each time under different conditions (or for different set of cases). I always use UNIANOVA for almost same 15-20 variables ...
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0answers
23 views

Regression model estimates vary depending on method of regression selected (stepwise/enter) with same predictor variables (SPSS)?

I am building a model for prediction with around 15 independent and one dependent variable. If I run a stepwise model (I understand the disadvantages of doing this) on the data, I get a set of ...
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0answers
15 views

Comparing measurements obtained from >2 devices (Bland-Altman, Tukey mean difference plot)

I would like to compare different measurements in regard to agreement. Quite often this is done using a Bland-Altman plot (also called Tukey mean difference plot) in medical literature. What I would ...
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0answers
17 views

Question about aggregate function [migrated]

I'm an R user and I'm trying to rewrite some second hand SPSS code in R. Could someone give me a basic idea of what this code is achieving?: ...
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0answers
19 views

Repeated Measures ANOVA SPSS

I have the following predictors: - 2 within subject factors - 4 between subject facors Theoretically, I'm mostly interested in the main and interaction effect between the 2 within subject factors as ...
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1answer
30 views

Wilcoxon Signed Rank Test reports “U” instead of “Z” in SPSS

Given two variables A and B with 35 random data points (generated with Excel in the range of 0 to 1), we applied Analyse -> Nonparametric Tests -> Legacy Dialogs -> 2 connected Samples in SPSS and ...
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1answer
23 views

Dependent questions in SPSS [closed]

I have questions in a survey that are dependent on other questions, i.e. nested questions. How do I enter those into SPSS? Example: ...
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13 views

SPSS Generalized Estimating Equations (GEE) with 2 nested subject variables?

I have an intercept-only model with 1 dependent variable and 2 subject variables (participants and participant groups). Technically, the participants variable should be nested within the participant ...
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36 views

MANCOVA reporting

I just ran a MANCOVA to compare my grouping variable with my dependent variables whilst controlling for my covariates. I am running a descriptive study, therefore already by looking at descriptive ...
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34 views

Inconsistent mediation

I am trying to figure out how to interpret my data where I think I have inconsistent mediation (MacKinnon, Fairchild & Fritz, 2007). Before including covariates: I have a non-significant total ...
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0answers
23 views

Multiple testing correction for 2x2 tables in SPSS

Hi I have 1 binary dependent variable (presence or absence of coeliac disease) and multiple binary independent variables (presence or absence of different symptoms). If I perform a chi square in SPSS ...
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26 views

Interpretation of SPSS output mixed model

I have an spss output, whereby I included the variable education in the fixed as well as random part of the SPSS mixed model syntax. A multilevel model is estimated whereby Level 2 represents ...
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14 views

SPSS output: Change of direction between univariate and multivariate

I am bit lost with my SPSS output. I am doing research on change management and its success factors. I set up a model with two IVs (kommunikation (communication) and Task Scoping). Alter, Geschlecht ...
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0answers
23 views

Generate means and std. dev. in a repeated measures ANOVA

I got a repeated measures ANOVA with two timepoints (i.e. variables A1 & A2) as within-subjects dependent variable, and variable B as a between-subject independent variable. In the output (SPSS) ...
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1answer
27 views

Chi-square Analysis for data derived from continuous variables

Let's say I have growth parameters for a population. People who exceed 95th percentile are marked with 1, and people who are otherwise below it are marked as zero. I will then use crosstabs to compare ...
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0answers
7 views

SPSS MIXED: Getting estimated marginal means for repeated measures

Any advice for getting estimated marginal means with a within-subject variable? I am looking at the dependent variable SIR over three time points (pre, mid, and posttreatment). My syntax is: ...
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1answer
50 views

What's the proper way to control for gender effect in a repeated measure anova (on SPSS)

I need some help to be sure I am using SPSS right (in this case, putting the variables in their right places). I have a 3 (3 different conditions/groups) x 5 ( time 1, 2, 3, 4, 5) and I want to ...
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1answer
27 views

Comparison of longitudinal data in a same group of participants but using two entirely different tests

I have a dataset of participants who were longitudinally followed up at two different time points. They went through a series of measurements at both points. Even though the overall domain of the ...
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20 views

Regression not sure

My early research shows that after giving voice therapy children improve their phonetic production- faster reaction times ( I had 10 participants who named 20 items pre and 20 post therapy). However, ...
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21 views

Advantage of a pooled Repeated Measures ANOVA?

Study Design: 2 (time) x 2 (condition) repeated measures design DV: Physical activity (i.e. walking/cycling/running; all measured in units of seconds, meters, and amount of steps) IV's: Time, ...
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0answers
5 views

Loops for covariates: making SPSS choose covariates according to predictor in linear regression [migrated]

In my data set, I have several independent variables (here named "predictor1", "predictor2" etc.) and several dependent variables ("outcomeA", "outcomeB" etc). Furthermore, I have several covariates ...
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1answer
83 views

Applying Rubin's rule for combining multiply imputed datasets

I am hoping to pool the results of a pretty basic set of analysis performed on a multiply imputed data (e.g. multiple regression, ANOVA). Multiple imputation and the analyses have been completed in ...
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0answers
48 views

Logistic regression, separating variable (moderator) true in population! [duplicate]

I already checked other posts in this area, but still couldn't get a fit to my issue: I have the following preconditions: Software: preferred SPSS v21, possibly R Sample size: 5655 (will get around ...
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0answers
13 views

Creating a scatter plot with multiple (>10) variables from repeated measures in SPSS [migrated]

Some explaining facts in the beginning: I have got my data structured in SPSS in the following way. I've got 20 variables (case_number, a_1, b_1, c_1, a_2, b_2, c_2, ....) The variables are named in ...
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1answer
30 views

How to find statistical significance on SPSS? [closed]

i have 3 separate variables - Depression, Anxiety and Stress - each of them have been answered as Yes or No. These were answered by Case group and the Control group. Now I need to find if each of ...
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0answers
9 views

SPSS Binary logistic regression incoherent result after excluding outliers [duplicate]

I'm using binary logistic regression for my master thesis and after running the regression for a a few specific variables I get the following resutl: Then I created a filter to run the regression ...
0
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1answer
32 views

Why do we ignore the main effects when the interactions are not significant in a three-way ANOVA?

I'm following an SPSS guide online, and the procedure is to first test for a three-way interaction. In my case there was no sig. three-way interaction. Then the procedure asks me to consider two-way ...
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1answer
23 views

Mediator reverses direction of causal variable. How to interpret?

I'm running a mediation in SPSS as per Baron and Kenny's guidelines (using regression). X is a dichotomous variable; M and Y are continuous. Step 1) X-->Y (r = .07, p = .03) Step 2) X-->M (r = .45, ...
2
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1answer
76 views

Univariate cox regression hazard ratio in SPSS

I'm currently doing some analysis for a retrospective cohort study of biomarkers in cancer patients. I've noticed that some papers have utilized univariate cox regression analysis to generate a hazard ...
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0answers
54 views

Can I create an Index score using factor scores as weights?

I am creating an Overall Customer Satisfaction Index score based off of 4 factors that comprise satisfaction for callers to a call center: A representatives concern for your needs; ease of navigating ...
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0answers
23 views

Degree of freedom in post-hoc test

I have a crucial question (crucial for a statistic beginner as me...) I have run a 2x2 repeated meausure ANOVA between subjects where I had: Factor Between: Subject Category (14 musicians/14 ...
2
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0answers
20 views

Interpreting interaction between time and time-varying predictor in mixed models

I have measured the DV and predictor at 2 timepoints in a single group, and am using the MIXED procedure in SPSS. I want to see whether change in the DV over time is predicted by change in the ...
2
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0answers
18 views

Test analysis - repeated measures

I lack the experience and can't find an answer anywhere at the moment. The situation is as follows: I would like to test a new device measuring the heart rate of a patient. For this, I have observed ...
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0answers
12 views

Data exported by Survey monkey to SPSS [closed]

I conducted my survey using survey monkey website and I had option to import data using SPSS. My question is: Are the type of variables generated during import correct or do I need to check the type ...