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

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621 views

how to compare two percentages to prove for statistical significance

I have problem to compare the two percentages and to get the statistical significance for these two different percentage. I just want to approve whether these two percentages are significant or not ...
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34 views

Which statistics to use and how to organize data

I have a categorical dependent variable, namely the answer that participants gave to a series of items. The answer can be "yes", "no" or "maybe" (x 54 items per participant). There are two independent ...
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1answer
435 views

How to follow up a factorial MANOVA with discriminant analysis?

This is a follow-up to to my previous question: How can MANOVA report a significant difference when none of the univariate ANOVAs reaches significance? I have two IVs with each having three levels ...
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57 views

Conjoint Analysis Simulation SPSS - excluded subjects

With SPSS when I run a simulation with conjoint analysis I got this message: "142 out of 155 subjects are used in the Bradley-Terry-Luce and Logit methods because these subjects have all nonnegative ...
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82 views

Fisher exact test (9x2) vs pearson chi-square (SPSS)

I am doing one analysis where I have 9 different conditions and only two options as outcome. I have done a pearson chi-square test, and in some of the cases I violated the assumption that expected ...
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20 views

Fixed parameter estimates of parent factors in a nested design

Summary: What is happening with parameter estimates of factors that are the 'parents' of nested factors? Data: My analysis involves testing the effect of different parameter settings for automatic ...
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173 views

Pair-wise comparisons for chi square test SPSS?

How do you see pair-wise comparisons for chi square test SPSS? I have 4 groups and one variable and want to see all the significant pair-wise comparisons.
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1answer
183 views

“The EM algorithm failed to converge in 25 iterations”

When I Replace Missing Values - Expectation-Maximization in SPSS, I receive the following message: The EM algorithm failed to converge in 25 iterations. Should the algorithm be able to converge? Can ...
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1answer
42 views

How do you set your own intercept in SPSS? [duplicate]

I am trying to specify the constant in a regression model using SPSS. Does anyone have an idea on how to do this?
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49 views

Understand mixed models SPSS [duplicate]

On a mixed model on SPSS I got the following results: in the table called "Type III Tests of Fixed Effectsa" ...
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17 views

Dependent samples but unable to pair individual scores

We surveyed a group of students before an in-school year-long project and after, and want to see if the changes in scores are significant. Data doesn't meet assumptions of normality. Can we use the ...
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11 views

How to analyse categories ranked 1 to 5 between two groups

I currently have 5 categories. I asked two groups to rank activities from 1 to 5: 1 is the most preferred activity and 5 the least preferred activity. How could I analyse this to see if there is a ...
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107 views

How to obtain an exact value of the determinant of a correlatiom matrix when doing PCA in SPSS?

When I perform a Principal Components Analysis (PCA) in SPSS 22 I get a footnote under the correlation matrix which states that the value of the determinant $=.000$. I am not able to display more ...
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61 views

Is there any possible method to calculate effect size in SPSS mixed model?

I run MIXED command for mixed model analysis of repeated measured data. However, there is no option or menu for estimate power(like partial eta in GLM) in mixed analysis. Is there any method to ...
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93 views

Multiple imputation in SPSS: merge datasets?

I have two sets of data, measured from the same persons. The variables in the two sets are very different. There are some extreme values (occurring at random) in both sets I would like to handle using ...
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1answer
108 views

Creating composite vairables in Structural Equation Modeling

I was wondering if you can help me. I want to run a pathway model using composite variables. Each composite variable is made up of 3 or 4 observed items. To create the composite variable to draw my ...
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1answer
31 views

Multi-level, creating second level variable

I have some trouble coding my data for multi-level analysis. I'm doing research on test results of children. These children are grouped within classes, within schools. I'm using class as the highest ...
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1answer
51 views

How to perform a conditional cross-tab in R or Excel? [closed]

I recently was given a project which consists of: pulling together words from ~500 small tweets and doing a matrix, which shows which words occur together in which tweets. I am wondering how I can ...
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1answer
139 views

Regression: Covariance table in spss vs. mplus

I want to use regression output (b, se B and cov of several predictors) as input for a new analysis. One example: I want to compute: SE^2(b1) + SE^2(b2) + 2 COV (b1,b2). If I do a basic regression ...
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1answer
2k views

What is component (factor) score coefficient matrix in PCA or factor analysis and how is it calculated?

As per my understanding, in PCA based on correlations we get factor (= principal component in this instance) loadings which are nothing but the correlations between variables and factors. Now when I ...
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1answer
599 views

Box-Cox transformation in SPSS

I have a dataset of variables that fail to conform to a normal distribution (Kolmogorov-Smirnov sig. value = 0 for all the variables). In order to perform parametric statistics on these variables I ...
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1answer
73 views

Is 0.40 Alpha score (KR-20) acceptable for a true-false test?

I have 10 true-false-Idont know test items. I codded correct responses as 1, incorrect ones and dont knows as 0. I got 0.40 alpha score (or KR-20). Do you think that this score is acceptable for such ...
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54 views

SPSS: descriptives in repeated measures

This is a question that has been bothering me for a long time, and until now I haven't been able to come up with a decent solution. Imagine you do a straightforward repeated measures analysis in SPSS ...
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1answer
91 views

Wrong error term for test of random factor in two-way mixed-effects ANOVA in SPSS

In SPSS, when I run a two-way mixed-effects ANOVA (with factor A fixed and factor B random), the between subjects effects table reported by SPSS uses mean square for the interaction (MS_AB) as the ...
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1answer
24 views

Need help in determining what tests to run in SPSS

I'm trying to find out whether there are any relationships between variables in my data set from Pew. I have two independent variables and one dependent. My first independent variable comes from a ...
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15 views

How to correlate scale and nominal variables in SPSS? [duplicate]

I want to run a test in order to identify if there is any correlation between the length of in-hospital stay (Scale) and the kind of the procedure (Nominal with three options; abdominal, cardiac and ...
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228 views

Choice based conjoint with SPSS

Is it possible to run a Choice Based Conjoint analysis (preferably with also no-choice option) with SPSS? Do I need a particular package for that? if not possible with SPSS is it possible with Stata? ...
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2answers
3k views

How to analyze my Likert-scale data

I am collecting data from a group of about 189 police officers on a 5-point Likert-Scale (measuring how much the police officers accept rape myths). I have no idea which tests to use to analyse my ...
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208 views

Q: Exploratory factor analysis in R

I am trying to do an exploratory factor analysis (EFA) in R with oblique (promax) rotation. From Wikipedia, In oblique rotation, one gets both a pattern matrix and a structure matrix. The ...
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1answer
86 views

Post-hoc after GLM: What does it exactly say?

Background: I have been asked to model the change of weight of a few animals undergoing experimentation via a simple GLM (General Linear Model). The data looks something like this. Note that all data ...
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53 views

Perhaps easy about SPSS Chi Square and Bonferroni

Oh hello. I just have entered here. Best place for my question. Sorry for that question in other site's part. :) So perhaps it's easy question, but I encounter this problem first time. I go ...
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31 views

Multiple, multiple regressions?

I have done a study on whether personality and demographics predict interaction on Facebook brand pages. I have used a Big five personality scale and the demographics include, sex, age, marital ...
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157 views

Post-hoc with Bonferroni a correction after ANOVA with repeated measure in SPSS

does somebody know where I can find the t value of post-hoc tests with Bonferroni correction when using SPSS.From what I get so far, I only see p values. Should I add a command in the script? Thank ...
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50 views

SPSS: How to split distribution evenly to analyze subgroups

I have a normally distributed SPSS dataset with 1400+ cases. I want to create sub-groups based on "age in months" that are distributed evenly. The dataset ranges from 12 to 60 "age in months". ...
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76 views

How use standardized regression coefficient in analyzing Likert scale questionnaire to calculate the weight of each factor?

I have a Likert scale questionnaire of 5 scales (from not important at all to very important) and i want to analyse this questionnaire to find out the weight of each factor. and then get to a maturity ...
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1answer
378 views

SPSS - Calculation of confidence intervals in estimated marginal means of repeated measures ANOVA

I used SPSS to do a repeated measures ANOVA including one within- and one between subject factor. Let's say the between-subject factor is treatment group with levels treatment and control, and the ...
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1answer
33 views

Retrain Time Series Models

I'm new to TS modeling, but have some experience in classic classification modeling. In classification I can train one model and use it for some time while some indices are stable (e.g. PSI). ...
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69 views

Likert scale and binary logistic model

If independent variables are measured in 5-point Likert scale and dependent variable is dummy, then can I apply logistic regression model here? How independent variables are put in SPSS?
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54 views

Formatting Time-series data for Cross-correlation

In an experiment we measured 100 response times for each subject. The data has the following format: ...
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205 views

Specifying interaction contrasts for within x between terms in SPSS

I am trying to analyse a dataset with 3 groups of subjects and one repeated measure with 6 levels (accuracy at identifying 6 different emotions). I am using the GLM command from SPSS to do this, which ...
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18 views

Apache Math package? OnewayANOVA

I am wondering have anybody used the Apache Math package to calculate the ANOVA scores? I didn't use SPSS as this can be incorporated into my JAVA code and is really light-weighted. Here is a link of ...
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77 views

Adding in L2 predictor in GLiMM fails even though ICC is high

I'm using SPSS GLiMM to run a repeated measures logistic regression model. Research Qn I'm interested to know if a MP is more likely to make a particular response (e.g., apology, challenge, denial) ...
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59 views

What to do with a construct item with low factor loading for one group but seems fine for other groups?

I have tested four types of advertisements on four groups. Each group was only given one type of advertisement. The following is two examples of the construct items used on 7 point scale in the ...
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1answer
87 views

Multiple Regression with Categorical Predictor Variables of More than Two Levels

I'm planning on running a hierarchical multiple regression. In the first step, I would like to enter demographic characteristics, second step continuous predictor variables of interest, and third step ...
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51 views

MANOVA on long data format

I need to run repeated measures MANOVA on long data format (the format was created to derive a categorical variable that is needed to be used as IV). Running RM MANOVA on long data format using a ...
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34 views

How the quality of clusters made in SPSS can be evaluated?

How the quality of clusters made in SPSS with the method "Two-step clustering" can be evaluated? Which test should be applied to be sure that the quality is good.
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18 views

Covariate not appearing in binary logit output SPSS

I have 52 covariate predictors for a binary logistic regression in SPSS, and each time I run the regression the last covariate doesn't show up in the output (regardless of which variable it is). Is ...
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1answer
69 views

Multiple Correspondence Analysis: SPSS treats 0 as missing value in indicator matrix

I have a data set with several ordinal variables. In order to perform a MCA I've learned that the data must be structured as an indicator matrix. E.g. I transform the 3-level variable knowledge into ...
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28 views

Oral glucose tolerance test, comparing treatment groups over time SPSS

I have performed Oral glucose tolerance testing on 4 treatment groups (Control, Light exercise, medium exercise and high exercise) in which I took glucose readings at baseline, 30min, 60min, 90min and ...
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32 views

Significant difference within line set and between two sets of lines

For my research a person has walked on a treadmill which contains two pressure plates: One below the left foot, one below the right. I would like to compare the force in the z (downwards) direction ...