Questions tagged [spss]

IBM SPSS Statistics is a statistical software package. Use this tag for any on-topic question that (a) involves SPSS either as a critical part of the question or expected answer and (b) is not just about how to use SPSS.

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Mixed Effects Model Longitudinal Setup Help

I have a design with 38 subjects each given a placebo plus two doses of a drug. At each drug/placebo visit after drug exposure they play a simulation game (which records an outcome measure) at 4 time ...
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How to calculate correlation between two categorical variables in SPSS?

I have two types of variables. One is Gender (Male, Female) and the other is Satisfaction (1,2,3,4,5). Is it possible to calculate the correlation between these two variables? If so, what type of ...
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Simple effect analysis following mixed anova with significant interaction effect

i am a little bit confused, as to which simple effects i need to analyze after conducting a mixed anova. I have conducted a mixed anova with time (pre-post-) as the within-subject variable and group (...
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Problem in calculating the confidence interval (Fleiss Kappa) in SPSS

I'm calculating the Fleiss Kappa for inter-rater and intra-rater reliability. I have 3 raters and they rated 10 types of forests as 'tropical', 'temperate' or 'boreal'. This is done twice with the ...
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Questions regarding work with multiple imputation data in SPSS

I used the multiple imputation function integrated in SPSS (method: auto [meaning Markov Chain Monte Carlo or in case of monotonicity SPSS reverts to Monotone]; 5 imputations) and now I'm running into ...
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What is the difference between Partial Eta Squared and Partial R Squared in factorial repeated ANOVA?

I carried out an repeated measures ANOVA in SPSS with two within subjects predictors, and requested for measures of effect size. SPSS provides partial Eta Squared as a measure of effect size, but I ...
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How do you reverse log, square root, and Ln data transformations?

If you have transformed your data, is it true that when reporting results, such as descriptive statistics (e.g. mean, median, range, variance, standard deviation etc.), you need to revert the data ...
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What hypothesis can be drawn from a dataset that looks like this?

Here is a picture of my dataset. I have three questions. 1) What are the dependent independent variables in this dataset? 2) How can I identify the year here as ordinal or nominal? 3) What possible ...
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Significant interaction in repeated measures ANOVA becomes insignificant with a covariate (SPSS)

I'm finishing my masters' project and have some results that are confusing me! I ran a repeated measures anova as 2 (valence - neutral or negative) x 4 (Task 1-4) This showed a positive main effect of ...
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Statistics, Data Analysis, SPSS

I'm currently analyzing the data of an experiment and faced a couple of questions. I want to test the hypothesis that: Variable A predicts Variable B. The two variables are the results of 2 tests. ...
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How to study the impact of time in a mixed-factorial design?

I ran a study to compare 2 different computer interfaces (say A and B) meant to be used in an unfamiliar environment. I want to compare: How much effort participants took to complete a certain task ...
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Using mixed models on SPSS for multiple observation per subject across time

It's my first question here and I'm french-speaking so bear with me, I'll try to make this as clear as possible =). I am unsure how to construct my database and how write my syntax (in SPSS) to test a ...
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Comparing weights in SPSS regression and R lm

In SPSS, you can use a variable as WLS Weight when carrying regression. In R, you can use a variable as an argument weight in <...
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Cox regression event variable

I am analyzing some data using the Cox Regression model to generate a Hazards ratio. We have an event that has three outcomes: 1 - surgical complications at death, 2 - no surgical complications at ...
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SPSS, how to properly interpret adjusted residuals in crosstabs with chi-squares larger than 2x2?

I would greatly appreaciate an easy to understand answer. To my understanding if the adjusted residual is +/- 1.96 or more (or less if negative) then something is going on. What exactly does the ...
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Multinomial regression

When I run my multinomial regression (SPSS) I get errors that there are too many empty cells in the sub populations. I have merged categories in my IVs to the extent possible. My DV has 4 categories....
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Mixed ANCOVA SPSS Interpretation

Before I ask my query I need to explain some basic details with respect to my study. Design: I have a mixed factorial design 2X2x2 with two within subject factors (having 2 levels in each factors) and ...
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How to summarise ANOVA post-hoc Tukey test?

I am having trouble to interpret tukey's post hoc result from the following They incorporated post-hoc test results into a table using the 𝑎≤𝑏<𝑐 style notation (𝑎,𝑏,𝑐,... correspond to ...
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Is it justifiable or acceptable to only check for moderation only in the experimental groups not in the control group

controlled experiment we have 5 groups: 2 Control Groups (CG, passive and active) 3 Experimental Groups (EG, Doseage of the Intervention). We also have two measurement time points T1 and T2 and ...
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SPSS vs R confidence interval [duplicate]

When I performed logistic regression and generated a confidence interval of the odds ratio with R using confint, it gave a different confidence interval than the ...
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Lavaan SEM and SPSS regression results are different

I'm using lavaan in r to run a structural equation model (SEM). However, the regression results of the model are very different from the results from regression of SPSS. Is there something wrong with ...
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Computing power (1-beta) for GLMM in SPSS

How do I compute power (1-beta) for GLMM in SPSS? Thanks.
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P-value for partial correlation following multiple imputation in SPSS

I am trying to calculate partial Spearman's correlations following multiple imputation in SPSS. The SPSS output provides a pooled correlation coefficient, but not the associated p-value. Is there a ...
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Multiple Linear Regression - Can independent variables with a very weak relationship to the DV be used in a model?

To conduct a MLR it is required that each variable has a linear relationship to the DV. However, in my current study, the variables have a weak relationship with the DV. This makes it quite hard to ...
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Odd ratio become different direction after adding other variables in logistic regression model

I am doing a logistic regression to test out the relationship between problematic behaviour and a number of variables e.g. self-centeredness, delinquent peers, childhood adversity and parenting. If I ...
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Linearity Assumption - What is the difference between the "Deviation from Linearity" and "Linearity" Statistic in SPSS?

I'm trying to assess whether a variable has a linear relationship to a DV. However there is a weak relationship, so assessing the scatterplot for linearity is quite difficult. I came across this ...
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Running several hierarchical linear regressions, all have the same Mahalanobis Distance. Is this weird?

As the title says I've run several hierarchical linear regressions on SPSS and I've found that all 6 of them have the same Mahalanobis Distance. I'm wondering if this is a normal thing to happen or ...
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Statistical test for SPSS comparing a change in attitude using a Likert scale

I have two questions both with Likert-type scale (1 through 4) that gauges the attitude change between question 1 and question 2. For example, Q1 ...
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Statistical significance btw two medians

We are preparing statistical analysis of cross-sectional study; and have the following question: We want to check whether difference btw two age medians grouped by categorical variable (died vs alive) ...
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Interpretation of the results of ordinal regression

My ordinal DV is estimation of danger (10-point Likert scale, 1 - least dangerous, 10 - most dangerous). One binary IV is gender (male, female). The other binary IV is type of image (fast, slow). ...
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Need help with moderated mediation

I hope someone can help me because I’m a bit lost. I’m currently doing a research for my master thesis on a topic regarding empowerment. For this research I came up with the following conceptual model:...
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SPSS Statistics HELP - Likert data

I have a cross sectional sample of around 300 respondents. The sample collects data on individuals living with a certain mental health disorder. The variables are as follows: Continuous dependent ...
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How to test the effect between income and economic growth in spss?

am going to test the impact and relationship between income, which is an independent variable, and economic growth, which is a dependent variable, over 10 years in spss? Thanks
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Which stats test to use? Multiple Independent variables?

I'm working on a research project without much of a stats background so I need some help with figuring out which stats test to use currently. I think I have multiple dependent variables to look at, ...
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Is it correct to calculate Average Variance Extracted (AVE) and Composite Reliability (CR) using loadings from exploratory factor analysis?

In order to obtain evidence of convergence and discriminant validity of a scale, I used SPSS to run a Exploratory Factor Analysis; and used its loadings to calculate the Average Variance Extracted (...
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what does it means for p value = 8.780e-13 [duplicate]

I would like to ask if 8.780e-13 is greater than 0.05 for significance? I am not sure what is the calculation of this. Thanks a lot!
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Should I include year effects in my regression?

I made the following logistic regression model for my master's thesis. FAIL= LATE + SIZE + AGE + EQUITY + PROF + SOLV + LIQ + IND. Where I take a look if late filing of financial statements (...
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How can I analyze the relationship between a quantitative and a categorical variable in a within-subject design?

For my bachelor thesis I'm conducting a study on the relationship between eye-movements and memory. One of the hypotheses is that the number of fixations made during the viewing of a movie clip will ...
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Negative values for Krippendorff 's alpha

I am trying to assess the inter-rater reliability for 5 raters about 36 questions. My variables are ordinal. Am I doing something wrong? Or what is the meaning of negative values?
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Quadratic Regression with a proportion scale in SPSS?

I want to perform a Quadratic regression in SPSS. The dataset includes two variables: Independent variable = the proportion of hours worked from home -> (ranges from: 0.00 - 1.00) Dependent ...
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How to interpret my results of a multivariate analysis of variance with repeated measures

I did a study for my thesis and now I am a little bit worried, that I am interpreting my results wrong. If anybody could help me with that, I would be quite happy and thankful! Relevant information ...
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Directional hypothesis testing in linear regression models using SPSS

I have an alternative hypothesis which states H1: "The intelligence quotient (IQ) has a positive effect on school grades", i.e. $H_{1}: \beta_{1} < 0$. I am using a linear regression to ...
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ANOVAs from SPSS and R report different degrees of freedom. Which are correct?

I am conducting a reanalysis of some data. The dv is continuous (beta value ie neural activity) and the iv is categorical (position) with three levels (1, 2, 3). There are 126 observations. The ...
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Categorical Variables Cox Proportional Hazards Model SPSS

How can I stratify individual categories for a variable when doing Cox models to see if a particular category within the variable is a significant predictor in SPSS? For example, the variable can be ...
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Panel Data with 2 IV and 1 DV

I am working on my thesis and I have a few questions about which method I should use for the analysis of my data. My research is about inequality in Europe, and in general households in Europe that ...
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2x2 Mixed Factorial Design Interaction and Main Effects [duplicate]

Hello I am running a 2x2 mixed ANOVA design. My between factor is condition (treatment v control and my within factor is time (pre v post). I am using SPSS and have run my ANOVAs and have found a ...
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Restructuring behavioral data

For practice purposes, I am trying to analyze a pilot data from my psycholinguistic experiment through SPSS. Since many experiment softwares provide the data in a trial-by-trial format, I have to ...
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Logistic regression gives very confusing results in SPSS

While analyzing the data for my bachelor thesis, I got some results that I just don't know how to make sense of. I've been trying to predict a binary variable (yes/no choice in a questionnaire) from a ...
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Logistic regression, anova, mediation?

I have 2 IVs, "Gender" (Male, Female) and "Relationship status" (Married, Single). Then I have several DVs. The first DV is "Stopping certain behaviour" (Yes, No). Then ...
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Combining ordinal variables and what statistical test to use

I have heard a lot of different opinions on this matter, which led to some confusion on my side. I have ordinal data that was captured in a survey with a 5-point Likert scale (Strongly disagree, ...
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