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

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1answer
19 views

How to deal with different outcomes between pairwise correlations 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
8 views

Comparing one independent variable to several dependent variables

I have one independent variable (GROUP which consists of three levels :School kids, University students, PhD students) and I need to find the effect of this IV on several dependent variables (I have ...
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0answers
17 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
52 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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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
14 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
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
15 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 ...
1
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1answer
311 views

optimal scaling / CATREG for imputed data

I have a data set with 5 different kinds of nutrient statuses and I want to see whether they are associated with categorical / ordinal grades at school. I have multiple covariates which I will ...
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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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0answers
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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0answers
19 views

Custom Tables: How does SPSS treat multi response sets differently from categorical vars? [on hold]

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 ...
6
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1answer
104 views

Predicting variance of heteroscedastic data

I am trying to do a regression on heteroscedastic data where I'm trying to predict the error variances as well as the mean values in terms of a linear model. Something like this: $$\begin{align}\\ ...
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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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0answers
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
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 ...
243
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25answers
84k views

Python as a statistics workbench

Lots of people use a main tool like Excel or another spreadsheet, SPSS, Stata, or R for their statistics needs. They might turn to some specific package for very special needs, but a lot of things can ...
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0answers
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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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 ...
2
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1answer
280 views

One way Anova Test validation

Let me give you an example to show what i am trying to. Let's say 50 patients started a cure for a disease and it took 2 months. So, I want to compare the first month's tumor sizes to the second ...
2
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1answer
118 views

Can I do a dependent t-test if pre & post were anonymous?

I am trying to analyze the following case study using SPSS. What I have done so far as part of my research is to conduct a case study to measure the affect the introduction of different technology ...
0
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1answer
91 views

How can I find tendencies in specific cases between two groups?

I'm doing this project where we are investigating whether social networks can influence peoples distinctiveness. Briefly summarized, we have primed a group with a social media and another is the ...
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1answer
1k views

Partial correlation plot, split by groups SPSS

Is it possible to illustrate partial correlation scatter plots for 2 subgroups on the same graph? e.g. I want to make scatter plots of data controlled for age, differentiated by males or females. ...
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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 ...
0
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1answer
163 views

3 way mixed ANOVA & pairwise comparisons effect size

I have a 3 way mixed ANOVA, where I have 2 significant main effects, one significant two way interaction and a significant three way interaction. I've been told to not describe the lower order ...
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1answer
3k views

Hierarchical or Two-step cluster analysis for binary data?

(This question is an edited version of a question I previously posted which one user recommended would benefit from more focus). I have 2000 questionnaires from respondents which ask 33 different ...
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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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2answers
603 views

Correlating time series for 20 regions (SPSS)

I have a question to which I can't find an answer although I spent really awfully lot of time searching. I have time series data for about 20 regions of a country. Each time series covers 20 years. ...
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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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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 ...
3
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1answer
274 views

interpretation of correlation matrix of regression coefficients in Cox regression?

I am using SPSS to perform Cox regression. After finding all the significant covariates, there is a table called correlation matrix of regression coefficients. My question is what kind of information ...
3
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1answer
422 views

Find out if there is a way to create BMI weight category variable

I am working on a project and have to find a way to break my data into percentiles. The variables that I already have are gender, age in months and BMI. If I am able to calculate the percentile that ...
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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
277 views

How to compare means of repeated measures between groups in SPSS

I'm having trouble regarding which test to run on my data in SPSS. I have two groups (condition1 and condition2) which is also my independent variable (categorical). Both groups were asked to rate ...
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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?: ...
0
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1answer
85 views

How do you suppress imputed data and only display results for the pooled data?

I've done 15 imputations and am now running various tests on the new data, but all I'm really interested in is the pooled results at the end. The long list of imputations (especially in a test like an ...
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1answer
1k views

Mixed model in SPSS with random effect and repeated measures

I am working on analyzing a dataset that involves repeated measures data. The data was previously analyzed by a colleague using custom code written in C++, but I have expanded the dataset and am ...
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2answers
385 views

Can AMOS be used to perform logistic regressions?

I need to compare 11 groups of data, for the same relationship. My first thoughts were to create 11 regression equations (one for each), and to compare parameters between groups. Problem is that ...
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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 ...
0
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1answer
178 views

How to combine different questions of questionnaire into a single variable?

I have used a 48 item questionnaire - a Likert scale - with 5 points (strongly agree - strongly disagree). The questionnaire contains 6 categories and each category has 8 questions. 8 items correspond ...
0
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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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0answers
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 ...
2
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2answers
901 views

Visualizing data spread along both y- and x-axis in 2D scatterplot

I'm currently in the process of doing a literature review of a brain atrophy measurement, called BPF, commonly used in research regarding neurodegenerative disorders. I have searched for publications ...
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0answers
37 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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0answers
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 ...
1
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1answer
381 views

Regression with multiple dependent variables and 2 sets of multiple independent variables

In my data I want to be able to determine which set of IVs (there are 8 variables total, 4 in each set) does a better job of predicting a set a DVs (there are 4). I know I could use multivariate ...
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0answers
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 ...
23
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6answers
7k views

Is PCA followed by a rotation (e.g. varimax) still PCA?

I have tried to reproduce some research (using PCA) from SPSS in R. In my experience, principal() function from package psych ...
0
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1answer
390 views

How do I convert unstandardized RMR estimates into standardized RMR estimates?

I am having difficulty turning unstandardized RMR estimates from AMOS software output in a SEM into standardized estimates to enable suitable interpretation. Can someone give me advice on where to ...