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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How do I analyse a set of clinical data that has a variable number of measurements per patient?

Thanks in advance for any help you can offer. I'm a PhD student and have just finished recruiting for an observational clinical study. Basically, we have recruited 100 patients and performed imaging ...
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13 views

How to prepare data for anova or manova

I have a datafile (below is Gdrive link) and I want to prepare it for Anova/Manova tests. About Data: ...
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3answers
3k views

Mediation analysis when mediator is categorical (SPSS)

I want to do a mediation analysis, with the following variables: ...
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0answers
15 views

Parametric versus nonparametric AUC from ROC curve

SPSS offers two ways to estimate Area Under the Curve (AUC) and its standard error, that is nonparametricly using trapezoidal rule or parametrically using binegative exponential distribution. I have ...
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26 views

Test for repeated measures with large numbers of missing values

I have a number of independent continuous variables, such as HbA1c, waist circumference, total cholesterol measured in approximately 300 people over various time points (baseline, 3, 6, 12, 24 months ...
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1answer
583 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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2answers
1k views

Correlation among categories between categorical nominal variables

I have a data set with two categorical nominal variables (both with 5 categories). I would like to know if (and how) I am able to identify potential correlations between the categories from these two ...
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0answers
73 views

Why does the post-hoc results in R differs the post-hoc results in SPSS?

I have run the same two-way Repeated Measure ANOVA in R and in SPSS. Following that I ran a Fisher's Least Significant Difference (LSD). R script ...
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1answer
144 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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1answer
107 views

Multinomial Logistic Regression in R vs SPSS

Apologies for re-asking a closed question [previously closed since it appeared that the R and SPSS datasets were off by one value], but now that I've had the time I have a concrete example where R and ...
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24 views

Analysis of reaction times with missing data by trial/item

I have a developmental psychology study with one between factor (age) and two within factors (scale-3 and difficulty-2). I recorded reaction times but have eneded up with a lot of missing data for the ...
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12 views

Missing Value in SPSS Output

I'm running a multinomial regression and I can't figure out why SPSS is giving me a missing value under ACountry. Any thoughts? Thanks!
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22 views

Modelling Time Series in SPSS

I'm very new to statistics and I've been asked to create a time series model in SPSS. I've taken a list of articles from one journal, each categorized by their main topic (topics have been numerically ...
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1answer
613 views

Ordinal Independent Variables and Dependent Variable Regression Analysis

I have 3 variables (2 are independent and 1 is dependent). All three variables are measured with questionnaires consisting of multiple questions recorded on 5 point scale. I want to perform regression ...
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1answer
152 views

How to test for mediation with a continuous mediator and DV, but a categorical predictor?

I want to explore whether attitudes mediate the relationship between employment status and intention to apply to graduate school. (See image below). I planned to use the Sobel Test to explore the ...
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1answer
28 views

Help with choosing the correct effect size

I conducted a two-way between groups ANOVA to test the impact of video gaming (gamer/non-gamer) and gender (male/female) on reaction time. I'm conducted my analysis using SPSS and received the ...
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1answer
12k views

Best factor extraction methods in factor analysis

SPSS offers several methods of factor extraction: Principal components (which isn't factor analysis at all) Unweighted least squares Generalized least squares Maximum Likelihood Principal Axis Alpha ...
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2answers
5k views

How to do meta-regression in SPSS?

I am trying to manage a meta-regression in SPSS17 using the effect size as the dependent variable. I want to explore if my independent variables affects the effect size. Some small practical questions:...
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1answer
25 views

SPSS: Regression Sample Size

I just wanted to know where I can see my sample size in the output of a linear regression. It must be in the ANOVA-Table in the column of the df. Is my sample size 487? ANOVA-Table Regression 2 ...
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2answers
940 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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1answer
160 views

PROCESS macro in SPSS - Analysis for multiple IV?

I have a moderated mediation model with 4 IVs, 1 mediator, 1 moderator, and 1 DV. I can't find the right model in the templates provided by Andrew Hayes for his SPSS PROCESS macro. Can I carry out one ...
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1answer
1k views

Using Univariate ANOVA with non-normally distributed data

If my data are non-normally distributed and I'm conducting a 2x2 ANOVA, what can I do to correct for this problem so I can report the main effect and interaction output appropriately? Only one ...
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2answers
3k views

Very different results of principal component analysis in SPSS and Stata after rotation

For my PhD thesis I have to do a Principal Component Analysis (PCA). I didn't find it too difficult in Stata and was happy interpreting the results (I know there is a difference between factor and ...
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1answer
73 views

Do Stata and SPSS give conflicting versions of Anti-Image matrices?

I read on p1 of the Stata Manual glossary that: The image of a variable is defined as that part which is predictable by regressing each variable on all the other variables; hence, the anti-...
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1k views

Multiple imputation questions for multiple regression in SPSS

I am currently running a multiple regression model using imputed data and have a few questions. Background: Using SPSS 18. My data appears to be MAR. Listwise deletion of cases leaves me with only ...
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42 views

Multivariate regression in Tensorflow where dependent variables also depend on each other

Dear Stackoverflow community, I would like to understand how to implement a multivariate regression in Tensorflow, where all the dependent variables yn depend on both input variables xn as well as ...
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1answer
245 views

Two-way ANOVA for data with homogeneity of variance is violated

I'm currently doing a biomechanical tissue study and want to run a two-way ANOVA. Here is how my data look like: Independent variable #1 : Treatment or Non-treatment Independent variable #2 : ...
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1answer
31 views

How to relate 2 sets of classifications (types of runners & motivations)

I am currently writing a proposal and am confused regarding which statistical method I should use. I aim to examine the motivation of runners in participating a charity marathon. It will use runners ...
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47 views

Help interpreting the output from a mediation analysis

Currently I'm working on some organisational research. Just to get a bit of a idea of what I'm research; I'm looking at impact of leadership on how enthusiastically work. I believe the relationship of ...
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1answer
30 views

what am i supposed to do if realiability test not up to 0.7?

hye. i have gathered 147 questionnaires with 39 variables the requirement for my research department need me to make the reliability test up to 0.7 or else it consider not reliable. i have tried ...
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0answers
12 views

Motivation of runners [duplicate]

I am currently writing a proposal and am confused on which statistics method I should use. I aim to examined the motivation of runners in participating a charity marathon and categorizing it. It will ...
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1answer
98 views

Reproducing SPSS GLM in R, changed coefficients

I'm trying to reproduce a generalized linear model in R. The original SPSS model has distribution Gamma, link Log, with a continuous dependent variable and all independent variables categorical. In R ...
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0answers
24 views

Thesis SPSS Regression help

I'm currently working on my thesis and would like some advice for the statistical analysis section. My hypotheses are: H1: Firms that belong to a product industry are more likely to establish a ...
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0answers
14 views

Suppression + Mediation?

I have a suppressioneffect, because a correlation between x and y is actually non-significant, but if I put in another variable (in a multiple regression), then the correlation between x and y becomes ...
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1answer
570 views

To find significant differences between means using repeated measures GLM

I am new in using SPSS and stuck with General Linear Model [which is just linear model] procedure. I have 8 cognition variables like latency, thigmotaxis, spatial, quadrant, nt quadrant, proximity, ...
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2answers
1k views

How to cluster time series?

I have a question about cluster analysis. There are 3000 companies, which have to be clustered according to their power usage over 5 years. Each company has values for every hour during 5 years. I ...
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27 views

Logistic regression with 2 predictive variables

I need some advice for choosing the correct model. I have 3 binary variables: Risk (0 = the person doesn't take financial risks, 1 = the person takes financial risks), gender (0 = female, 1 = male), ...
5
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1answer
931 views

Post-hoc test in two-way ANOVA

I am doing a two-way independent ANOVA using type of organisational change (5 levels) and job level (7 levels) within the organisation as the factors (in SPSS). I followed Andy Field's procedure (...
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0answers
14 views

SPSS GENLINMIXED error message “subject field not used”

I am running the following syntax in IBM's SPSS: GENLINMIXED /DATA_STRUCTURE SUBJECTS=Subject# /FIELDS TARGET=any_error /TARGET_OPTIONS DISTRIBUTION=BINOMIAL LINK=CLOGLOG /FIXED EFFECTS=...
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1answer
55 views

SPSS: GLMM and(adjusted) odds ratio

I am performing a retrospective study and the relative statistic analysis. I am studying the the risk factors for the occurrence of complications during medical procedures. I have 50 subjects ...
3
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1answer
446 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 ...
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1answer
3k 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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0answers
26 views

Interpreting the Structure matrix in Discriminant Analysis

I was trying to do a discriminant analysis in SPSS and I have to interpret the output. But when I come to the table of Structure Matrix, I find difficulty in defining the variables I should use in ...
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1answer
30 views

How to interpret estimated coefficient of ordered logit regression which has a negative value

What is the interpretation of the negative estimate ($b$ value) in an ordered logit regression? That is, an "increase of one unit in the independent variable results in an increase or decrease of the ...
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0answers
18 views

Decision Tree with High Specificity and Low Sensitivity

I ran a decision tree on some data with over 1 million of observations, a binary dependent variable and a few dozens of independent variables, some partially correlated. I got weird results. The ...
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0answers
73 views

How to report non-normal distribution and Wilcoxon in APA style

I have within-subject design and want to compare the means of two conditions. I first run the test for normal distribution and used Shapiro and p values are ...
13
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1answer
17k views

Doing principal component analysis or factor analysis on binary data (using SPSS)

I have a dataset with a large number of Yes/No responses. Can I use principal components (PCA) or any other data reduction analyses (such as factor analysis) for this type of data? Please advise how I ...