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Questions tagged [spss]

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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PSPP has no dedicated label in Cross Validated [migrated]

A meta question: how come PSPP has no label of its own? Its users are more command line driven than SPSS users which are more ...
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Export PSPP histogram to an image file

I have an *.ods file with grades, and I want to see the histogram of question number 2 (variable name Q2). Here is my syntax ...
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2answers
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Interpretation very small standardized coefficient beta

In one of my studies I have results similar to the below: β=-0.0007 (95% CI: -0.0009, -0.0002), p=0.01 Since β is so small (but also the Confidence Interval (CI)), is this result still meaningful? ...
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1answer
27 views

Is it correct to use paired t test after 1:2 matching?

Is it correct to use paired t test after 1:2 propensity score matching? How we can do this in R? I found the following link in SPSS (https://www.researchgate.net/post/how_is_paired_t-...
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How do I interpret a significant three-way interaction when all two-way interactions are not significant? [duplicate]

How do I interpret a three-way interaction when all two-way interactions are not significant?
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1answer
11 views

Which statistical test should I use for this? [on hold]

I have data that is if the answer was Correct/Incorrect. This would be nominal data so I know I cannot use an ANOVA. I have one independent variable that has 3 levels to it (the IV being Cue Type and ...
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11 views

Probability Plot for Ordinal Logistic Regression on SPSS

I would like to draw a plot of my predictor variable (continuous) vs. the probability of my outcome variable (4 ordinal levels) on SPSS. I have run the simple, usual PLUM model but there is no direct ...
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6 views

Setting up GEE in SPSS [on hold]

I have volume and crash data for 7 years from several roadway segments. I used segment ID as my subject and Year as within subject variation. Then I used volume as predictor and total crashes as ...
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1answer
19 views

Comparison of the mean of a binary variable from two independent sets

I have two sets of data, one is akin to high performing companies, and the other contains low performing companies. I want to compare the mean of a binary value. For instance, "CEO has a bachelor ...
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is it possible for a value to be significant as a single predictor but then to be removed from the multivariate model? [duplicate]

Is it possible for a value to be significant as a single predictor but then to be removed from the multivariate model during the statistical analysis? I used SPSS. Values are predictors of difficult ...
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15 views

Generating R squared statistics when carrying out a Firth Logistic Regression

I am using the logistf package available for SPPS to carry out a firth logistic regression, and have results relating to the coefficents, standard errors and p-values associated with each predictor. I ...
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1answer
40 views

What would be the appropriate statistical test for my study?

What would be the appropriate test for a study that has: 2 categorical independent variables with 2 levels each, 1 moderator variable (and would it matter if my moderator is categorical or continuous?...
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Ordinal Regression Interprataiton [duplicate]

I am trying to learn how to perform ordinal logistic regression, this time using SPSS (but it is not very important to my question). I used the following tutorial: Link to example And either I don'...
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1answer
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How do I determine if the difference between treatment and control is significant when they have different sample sizes?

I am currently performing a test in C. elegans mortality. In my extract and negative control, different sample sizes of worms (25-30 worms) were used due to the degree of difficulty of transferring ...
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1answer
15 views

How to interpret the output when one or two levels are significant in the seemingly insignificant categorical predictor in logistic regression

I am running a multilevel binary logistic in SPSS. The predictor variable in question is a categorical variable with four levels. In the first fixed effect table, it seems like the predictor variable ...
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12 views

How to Change prior probabilities for predicted variable in neural networks and other methods in SPSS Statistics

i am trying to find right model for predicting categorical variable with two values. Problem is that ratio of cases in group 1 and group 2 is not equal but rather in ratio of 2:1. When i try to find a ...
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what should we do if we get negative error in amos and what is meaning of more than 1 factor loading in amos?

I have done exploratory factor analysis in spss (IN WHICH SAMPLE SIZE IS 300) from which i get information about rotated component matrix by varimax method. Which show me 3 latent factor which have ...
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1answer
11 views

How to interpret categorical variables with many categories logistics regression (SPSS)

I am having trouble finding any resources to help me interpret my logistic regression results. I'm using SPSS, but I don't think that matters a whole lot. I understand the odds ratio concept (as well ...
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How to do a survival curve adjusted to age in SPSS?

I have to do a survival curve comparing 3 diseases. Already did a Kaplan Meier since time of diagnosis, and the log rank was p-0.001; however I suspect that it has to do with age (one disease is ...
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Python vs R vs SPSS giving different Predicted probabilities for logistic regression [closed]

I am converting some of the models from SPSS to either R and Python, even though the model evaluation metrics like Confusion matrix, AUC, Accuracy match across the 3 platforms, the final predicted ...
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How to Run Linear Mixed Models in R [closed]

I am trying to run an equivalent Linear Mixed Model test in R that I have run in SPSS but can't seem to get the same results. There are three variables in the design: The DV, Cond (fixed factor, 2 ...
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9 views

Correlation between “ Time of the day” and an ordinal variable

My hypothesis is The compliance score (Dependent/ ordinal variable) varies during a different time of the day. for example, I would expect high compliance between regular working hours 7 am - 5 pm -...
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1answer
36 views

Interpreting categorical interaction terms

I am wondering how to interpret results of interaction terms (see image below). I think to know that the interaction term 1 (IV x potential moderator group 1) depicts the difference of association ...
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0answers
17 views

How to do slope comparison in SPSS? [closed]

I have data from density rearing. Organism was reared in several different densities and the number of surviving individuals was counted once a week for four weeks. My aim is to spesify what would be ...
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How to correct standard errors for heterogeneity and intra-group correlation?

I got my article manuscript back from review and one notion from a reviewer was that in my analyses "[s]tandard errors are not corrected for heterogeneity or intra-group correlation", s/he apparently ...
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Which Post-Hoc Test Should Be Used in Repeated Measures (ANOVA) in SPSS

I have three experimental and one control group in my study. I have two observations for them (pre and post test). I want compare four group in those 2 observations. I choose to do "Repeated Measures-...
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2answers
33 views

SPSS cox proportional hazard model adjusting for age

I'm using SPSS to run cox proportional hazard model. I've five different groups and I need unadjusted and adjusted (for age) HR for all of them separately. My first group is a reference group. I've ...
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Repeated measures ANOVA question

I'm new to statistics and looking for some guidance on choosing my variables for a repeated measures ANOVA. My data set consists of 4 dependent variables: 1. Gait speed 2. Balance test 3. Leg ...
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1answer
31 views

Statistical Analysis Software [closed]

I am a psychology student at UCF. I intend to pursue a master's degree in industrial and organizational psychology. We use SPSS in the psychology department. How prevalent is SPSS used in offices? ...
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0answers
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p-value of Covariate differs between Regression and ANCOVA

I'm using SPSS to run a regression analysis in order to predict navigational performance (continuous dependent variable) from self-assessment scores (continuous predictor), sex and age group (both ...
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is the PROCESS-test in statistics a parametric or non parametric test?

This might be a silly question. But my supervisor wants me to redo the analytical (spss) tests of my thesis, because my data is not normally distributed. I found that there is an alternative for the ...
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1answer
20 views

Validating A Model On Pre-Test Post-Test Design

I am phd candidate at primary education department. My aim is to validate a model but i have not find a exact answer yet. I have 2 groups. (Actually 4 but only 2 of them are going to use to validate ...
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1answer
16 views

How to interpret MANOVA results after adding gender, splitting the file?

I am analyzing my 2x3 between subject design with MANOVA in SPSS at the moment. In the main model, there is 2 IV's and 2 DV's. Result of the test is 1 main effect and no interaction effect. In an ...
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Regression on a change between a variable before and after?

In my dissertation I am using a paired sample t test to see if there is a statistically significant difference between consumers' intention to purchase from and attitudes towards purchasing from a ...
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What should I do with chi-square expected values below in this large table?

I asked a question about emotions felt during a particular period, taking the question from previous literature. However, for a number of frustrating reasons, I ended up with small sample size. I now ...
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1answer
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What should be the test value when finding important factors?

When doing One-sample t-test on a variable which ask respondents to rate a purchasing factor of a product like price on a scale of 1 to 5 with 1=least important and 5=very important, what should be ...
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18 views

Cox regression with two events

We have a status variable with three events: 0) Censored 1) Relapse 2) Death We want to examine if two different types of medicine have a different risk on either death or relapse. How can we compare ...
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SPSS: Comparing prevalences

I have a dataset of couples presenting themselves to the infertility clinic and would like to compare the prevalence of certain diseases in this group to the prevalence of these diseases in the ...
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Transforming raw scores to scaled scores using a proprietary scale

I'm working with questionaire answers from the Child Behavior Checklist (CBCL) for my master's thesis. The 113 items on the questionaire are organized into several subscales for different areas of ...
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0answers
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How to differentiate between a one way ANCOVA and a 2 way ANOVA in SPSS?

How do you differentiate between a one way ANCOVA and a 2 way ANOVA in SPSS when the one way ANCOVA has a continuous dep.var, categorical indep.var and a continuous covariate, while the 2 way ANOVA ...
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Cochran's Q test with changing proportions

for my thesis I am investigating the change in proportions of children in regular and special education. The information is obtained through an online questionnaire, and I have data for 4 consecutive ...
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1answer
22 views

Comparing the mean of two Likert scales with only one (no) group

I have data from several Likert Scales which look at how people feel about object a - e. I want to compare the means of these results and see whether people feel differently about object c and object ...
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33 views

Intraclass Correlation Coefficient in multilevel models (HLM)

I am currently writing my Master's Thesis and struggling to find a convenient way of calculating the ICC for my multilevel model (random intercept, fixed slopes). Information to the data: I have ...
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1answer
35 views

Data analysis mess! Huge data set, 2 factors with 2 levels each, but the levels are the same

To explain the hypothess a little bit: The factors would be emotional words and neutral words; the levels of both factors are left and right visual hemifields. The data is the participants response ...
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63 views

How to compare two mediation models?

I ran a mediation study using three dispositional measures, each measured with a scale. The order of scales was in line with my assumed model, so A --> B --> C. Using SPSS and PROCESS the results ...
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0answers
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Variables transforms in SPSS [closed]

I'm currently working in a linear regression in a large dataset in SPSS and would like to check several combinations of variables, eg V1+V2, V4*V8 and so on. The meaning behind this would be to have ...
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1answer
49 views

How to perform a general linear model with random intercept with data? [closed]

How to perform a general linear model with random intercept with my data with SPSS or R? I would like to know if the CO2 emission is significantly different between my treatments. My sampling design ...
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1answer
22 views

How to compare two Crosstabs for significance?

I have two crosstabs and need to determine whether their differences are significant. Both tables have the same independent variable but different populations. E.g., The only test I know to do is to ...
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Is there a way to prevent forecasting negative values in SPSS?

Currently I'm using the SPSS expert modeler, the training series is a seasonal time series, with some values close to zero in each period, and I find that when the training series have a descending ...
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1answer
45 views

ANOVA results discrepancy between R and SPSS

I ran into problems when trying to double check SPSS ANOVA calculations with R. I am aware of the difference in defaults concerning the Sum of Squares, therefore I followed guidelines for aligning ...