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

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7
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1answer
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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 ...
2
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2answers
206 views

Correlation and collinearity in regression

I did a correlation analysis for my variables. All of them are associated (the coefficient is above 0). However, there is no collinearity problem in my regression analysis. I do not know how to ...
1
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1answer
17 views

Different output for cox regression in R vs SPSS

During my analysis that I perform with a collaborator we get consistently different ouputs in cox regression between R and SPSS. Betas and p-values differ minutely, usually somewhere in the third or ...
2
votes
1answer
295 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 ...
0
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0answers
9 views

Wonky results from basic IF AND OR Syntax in SPSS [migrated]

My SPSS Syntax code below does not produce the results intended. Even when reason is equal to 15 or 16, it will flag ...
0
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0answers
6 views

Problems facing in fitting ordinal regression model on life satisfaction data

While running an ordinal regression analysis of life satisfaction data SPSS, I got the following warning: There are 148 (65.8%) cells (i.e., dependent variable levels by combinations of predictor ...
0
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0answers
3 views

Some dependent variables repeated and others measured at one time

I am running a one-way repeated measures ANOVA where I have three variables that are collected at two time points and four dependent variables that were only measured at the end. I can't figure out ...
0
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2answers
26 views

Need help double checking results of Binary Logistic Regression in SPSS

I'm working on some of my analysis section for my Master's Thesis in MPA, and while I have consulted my professors, I'd just like to double check with some external eyes (As obviously they are on my ...
0
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0answers
10 views

Statistical test for unordered repeated measures under same conditions

I am unable to find the correct statistical test for the following scenario. We have a recording session with 4 subjects. For each subject, we make 8 recordings in 2 different speaking styles, let ...
0
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1answer
93 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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0answers
15 views

what statistical test should I use for my quasi experimental study?

I am conducting a pre and post test questionnaire for my quasi experimental study. I am using two groups one group will receive training the other will not. I will only have about 24 participants. I ...
0
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0answers
26 views

Using and Interpreting Moderated Mediation with PROCESS Macro

I'm trying to look at a moderated mediation analysis using the PROCESS macro in SPSS, but there are several ways I could do this and I'm not sure what would be best or how to interpret the results. ...
0
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0answers
9 views

Multiple Regression: 3 groups for IV, post-hoc equivalent?

I would like to test the following: DV - Brain volume IV - Participant Group (Patient with Mild Symptoms, Patient with Severe Symptoms, Controls) Covariates - Age, Gender, IQ I wish to use ...
0
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1answer
177 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 ...
0
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0answers
21 views

Relationship numerical and categorical multiple response sets in spss

The situation is the following, I have two sets of data: one numerical set of data (answer to the question "How important is this to you?" 1=little, 2= medium, 3= very) one set of categorical ...
0
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0answers
47 views

Hessian Hell: Why won't this converge

I want to track and compare within-subject trajectories of performance over time in study (TIME) on three within-subject task conditions (task_index) categorical variable. I am using ID as my subject ...
0
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0answers
6 views

How to use Little's MCAR test with multiple scales?

I'm using SPSS and have a data set which includes lots of different scales and there is missing data across all of the scales. I want to know if the data is missing completely at random. I intend to ...
1
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0answers
14 views

Survival prediction with messy longitudinal data

I'm a doctor, and I'm starting to get the feeling that I am rather out of my depth with a project I'm currently working on. I'd appreciate any pointers towards the correct approach, further reading, ...
0
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0answers
8 views

What test should i use in SPSS to check relationship? [closed]

i want to check relationship between variables in my data some of my questions are on 6 point frequency scale and the remaining are on 5point likert scale what test should i use in spss analysis and ...
1
vote
1answer
297 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 ...
0
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1answer
14 views

Evaluating which factors influences a questionnaire scores

i have this problem to solve. I have a questionnaire of 19 questions, each one has 3 options, and only one for each is correct and it scores 1, while the others scores 0. Thus the max score will be ...
0
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1answer
90 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 ...
3
votes
1answer
286 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 ...
0
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0answers
11 views

How important is normality assumption for a two-way repeated measures ANOVA?

I want to use two-way repeatead measures ANOVA. The dependent variable is CRP levels in three different time points in five different group of patients. Each group includes 40-42 patients, so that ...
0
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2answers
629 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. ...
0
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2answers
410 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 ...
3
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1answer
447 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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0answers
24 views

Explaining the results of Binary regression

I have implemented binary regression in SPSS using Forward:LR as the method. For all results are available in output what should I use to explain the results of model and see which variable is the ...
2
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1answer
12 views

mediation hypotheses

I am examining a loyalty program's (LP) effectiveness on customer loyalty across members and non-members. I first hypothesised members will perceive higher levels of switching costs (SC), and exhibit ...
0
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1answer
280 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
39 views

non equal variances alternative for kruskal wallis anova

I have a dataset with a total of about 6 groups set up, and there is a minimum of n=150-200 samples per group. Now when I look at the data, its not normally distributed, and the variances are not ...
0
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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 ...
1
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1answer
392 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 ...
2
votes
1answer
88 views

Why are discriminant analysis results in R (lda) and SPSS different?: Constant term

I tried discriminant analysis with lda() in R and in SPSS, but the scalings were different, why? N, how to get (Constant) with R like SPSS result? data: ...
0
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1answer
24 views

Chi Square Statistic - Which variable should be defined as the dependent variable?

I am stuck with this very basic question which I need to answer using SPSS for the problem set pasted in cursive below. Any pointers in the right direction would be very much appreciated. Thank you. ...
0
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1answer
410 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 ...
-1
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0answers
17 views

get constant LDA in R from SPSS result [duplicate]

I tried discriminant analysis with lda() in R and in SPSS. data: ...
-1
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0answers
22 views

Which test is the best one for my research questions?

Does anyone know which test is the best one for my data analysis. My research questions are: How do firms’ capabilities affect its solution business model How do firms’ capabilities affect its ...
0
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0answers
17 views

Different Odds ratios in SPSS [duplicate]

I've got a dichotomous dependent variable = 5 year overall survival (dead=0, alive=1) and I've got a dichotomous independent variable = presence of inguinal metastasis (none=0, present=1). When I run ...
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0answers
11 views

Reporting Results from a Mixed ANOVA

I have done a Mixed ANOVA on some data from a tennis serving experiment and am slightly confused on how to report the results. I am comparing the effect of self-talk (either instructional or ...
3
votes
1answer
108 views

Non-normally distributed data - Box-Cox transformation?

I have data that is not normally distributed. The problem seems to be that there are too many of one value relative to other values. What I have tried to make data normal: I have tried a log ...
5
votes
1answer
684 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 ...
0
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0answers
11 views

Methods of Spend Outlier Detection

I'm looking to formalise some logic behind outlier detection for spend categories of survey respondents during a trip or event (e.g. accommodation, meals, shopping, etc). Distributions are zero-heavy, ...
2
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0answers
42 views

Computation of factors after factor analysis

I have run a principal axis factor analysis and I want to form scales for each factor. To be more specific, after having run the FA, I would like to select all items that load in a specific factor and ...
1
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0answers
27 views

Back transforming reciprocal transformation for difference between means

Say I have the following datasets which concern normalised masses like this: Set 1: 3.08, 2.79, 3.62, 2.62, 2.85, 2.45, 2.80, 2.62 Set 2: 3.25, 3.14, 3.30, 3.13, 3.19, 3.17, 3.35, 3.35, 3.82, 3.13 ...
0
votes
1answer
22 views

T-test: is the difference of the means in my sample's two subgroups equal to a given difference of means?(SPSS)

I've recently reread the section about t-test, comparing means in two independent subgroups and know the formula, how to compute the t-coefficient. Now I'm facing the question, whether the difference ...
0
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0answers
34 views

What statistical test should I use for binary data?

I am a slightly complex dataset, so I'll describe, I looked at medical visits from 2013 to 2014 and compared them to medical visits from 2013 - 2014. I documented each visit as a unique encounter. ...
0
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0answers
22 views

Measuring correlations between 10 nominal variables in SPSS

I am trying to find out how I should measure correlation between the answers to 10 nominal variables (with 0 and 1 as only answer options) at the same time. I can't use cross tables for this because ...
0
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0answers
48 views

Poisson Distribution Analysis in SPSS - Nonparametric, count, repeated-measures data

In relation to a recent post about what analyses to conduct for a data set, I am now asking a related question about the test to run in SPSS. Background information on the data: Repeated measures ...
1
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1answer
3k views