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 to find confidence interval for the mean of a variable between two different factors in SPSS?

I have data that outlines tumor sizes in patients and whether or not they are male or female. I would like to find the 95% confidence interval for the difference in mean tumor size between male and ...
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1answer
42 views

Why does SPSS give different p-values in the factorial ANOVA table and the Parameter Estimates table?

I ran a 2x2 ANOVA in which I predicted anxiety from two binary predictors (gender and agegroup). I couldn't understand why the p-values in the Tests of Between-Subjects Effects table did not ...
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Repeated measures with categorical variables in SPSS

I'm looking for some help with my thesis. The research is the following: I asked my respondents to give an alibi for several time periods; a day ago, a week, a month, 6 months and a year ago. For ...
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3answers
15k views

Choice between Type-I, Type-II, or Type-III ANOVA [duplicate]

We have a dataset with three variables (dV: self-reported measure on scale 1-5, assumed to be metric; iV1: factor with 4 levels; iV2: factor with 8 levels). We are interested whether the dV differs in ...
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8 views

RM ANOVA in SPSS - 'Within' or 'Measure'?

I've gathered data on an experiment where my participants performed a task with 3 blocks. In each block, there were 20 trials, each offering them a choice between one of four options. So for example, ...
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15 views

Independent t tests and unequal same size

Just wondering if when 'Equal variances are assumed', but the number of participants in the experiment are unequal (and the sample sizes are $<30, n_1=24$ and $n_2=25$) is it still okay to continue ...
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6 views

Post hoc ttest in SPSS

I computed a A x B (2 x 2) within subject ANOVA for a given ROI using repeated measures GLM. The interaction between A and B was not significant, but two main effects were detected. Can I still ...
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1answer
892 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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1answer
55 views

Combining two variables

I have a questionnaire about factors that affect trust in online shopping. The questionnaire is split into 5 topics (such as security, privacy, website design etc.) with 2 questions per factor. I've ...
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17 views

Likert scale - suitable analysis

I'm brand new with SPSS and I have to analyse a likert scale and I don't know what type of analysis are suitable. I have 30 completed questionnaires within 3, 4 and 5 stars hotels. Every ...
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3answers
2k views

Mediation analysis when mediator is categorical (SPSS)

I want to do a mediation analysis, with the following variables: ...
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16 views

Spss statistics [on hold]

am working on forecasting time series data (of bandwidth utilization across 85 markets)using spss statistics. Can anyone please tell me how to work on it.How auto correlation option in spss statistics ...
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5 views

Correlation between different variables with different relations [duplicate]

if x and y are positively correlated and x and z are negatively correlated. Is it implied that the relationship between x and y will be negative??(checked via pearson correlation)
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1answer
20 views

Ranking Data Comparison

I'm currently analyzing my experimental data and I have a question about comparing two variables. In the experiment I have a question which asks respondents to rank a set of pictures based on their ...
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1answer
188 views

Data normalization in SPSS statistics

I am analyzing the responses of a survey using spss statistics. I understand that I will need to do a Cronbach alpha first. But here is my problem: The first part of my survey is "Awareness" and ...
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0answers
12 views

How do I covary out a time-variable covariate in a repeated measures analysis?

I'm trying to analyze a longitudinal data set looking at pre- vs post-treatment effects on a single dependent variable. The difficulty I'm running into is that subjects in the group being analyzed are ...
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4 views

What does the results from the parameter estimates option from SPSS' mixed ANOVA mean?

Using the General Linear Model procedure in SPSS, I ran a mixed design ANOVA with one between-subjects factor and one within-subjects factor. I selected the 'parameter estimates' option and got the ...
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2answers
194 views

Predicting variance of heteroscedastic data

I am trying to do a regression on heteroscedastic data where I'm trying to predict the error variances as well as the mean values in terms of a linear model. Something like this: $$\begin{align}\\ ...
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1answer
418 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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10 views

Reading Centroid extracted factor matrix into SPSS for rotation, analysis [migrated]

I've been struggling with this for the last 4 days. I have concluded that I'm not smart enough to sort this out on my own, and I want to do this right. Desired Outcome: I want to instruct SPSS to ...
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Is there a way to export imputed values from SPSS multiple imputation to be used in other softwares like Mplus and R? [closed]

I am currently doing multiple imputation using SPSS. Since not all analysis in SPSS supports missing data handled by the multiple imputation method, I am wondering if there is anyway to analyze the ...
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1answer
567 views

Optimal scaling / CATREG (categorical regression) for imputed data

I have a data set with 5 different kinds of nutrient statuses and I want to see whether they are associated with categorical / ordinal grades at school. I have multiple covariates which I will ...
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12 views

PROCESS macro SPSS: one mediator and three moderators

I have a mediation moderation model with 1 mediator and 3 moderators (between the mediator and DV). I can't find the right model in the templates provided by Andrew Hayes for his SPSS PROCESS macro. ...
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9 views

How to subtract duration from a subset of cases of a date variable in SPSS [closed]

I am trying to subtract 5h from certain cases of a date variable (date) in SPSS With the date and time wizard I was able to create the variable dateNEW by subtracting 5h to all cases: COMPUTE ...
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1answer
140 views

Likert scaled covariates and binary logistic regression

If my independent variables are measured with 5-point Likert scales and my dependent variable is a dummy ($0$/$1$), can I use logistic regression? How are independent variables represented in SPSS?
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1answer
565 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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370 views

SPSS: How to decompose interactions in repeated measures ANCOVA?

I conducted a study with three categorical within-factors and one continuous personality variable: topic (1,2) x gain loss framing (1,2) x achievement security framing (1,2) x personality I know how ...
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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
30 views

Outlier transformation or no transformation?

I have two group's of 25 people each. I want to know if there a difference between them on a past experience of happiness . I have a test with 100 question in it and all question have an a and b ...
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1answer
118 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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7 views

relationship and effect on dependent variable

is it possible to have a variable which acts as both dependent and independent variable? for example: on the relationship between learning styles and inner speech during reading comprehension tasks. ...
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1answer
386 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 ...
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0answers
12 views

Regression model with company fixed effect in SPSS

I am an economic student researching which factors of culture influence the participation of an employee in the planning proces. As my studies didn't offer any sofisticated statistics courses, I'm ...
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8 views

Formative measurements in SPSS

I run an experiment and I have a dependent variable (aggression) which is a formative measurement with four indicators. My question is how I can analyze this with SPSS? I know that PLS-SEM can handle ...
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1answer
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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24 views

Interpretation of continuous by continuous interaction in binary regression model

I'm performing binary logistic regression in SPSS; y is dichotomous variable; and both Xs are continuous variables. I performed three models and I have troubles interpreting model with both ...
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0answers
10 views

Mixed model: Converting SPSS syntax to STATA [closed]

I'm currently using SPSS to produce a linear mixed-model for my study: Participants are divided into 2 groups, where each participant is tested over 3 days, with each day consisting of 12 blocks, and ...
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25 views

Ran a logistic regression and fit my data to the predicted model but the predicted model is not overlapping the observed data

EXPERIMENT: Heaviness judgments of a variable weight to a standard weight (2000g). Independent variable/covariate: Weight (9 levels: 1920g, 1940g, 1960g, ... , 2060g, 2080g) Dependent variable: ...
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1answer
206 views

Analyzing constructs with multiple items in SPSS (Regression & Correlation)

I am doing a master's thesis on the roles played by Perceived Bank Image, Perceived Service Quality and Perceived Satisfaction in predicting Customer Loyalty. My questionnaire consists of several ...
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1answer
33 views

Two-way repeated measures ANOVA for 2 independant and 1 dependant with heart rate

I've been trying to find someone with a similar question for hours now, so sorry if this is a duplicate: I've got music (independent variable no. 1)-three different types (so 3 levels), emotion ...
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8 views

Does Sample Size Affect Partial Eta Squared values when running a Mancova or Ancova?

I am currently running an ANCOVA and MANCOVA for my research and need some help in terms of understanding the Partial Eta Squared(PES) values given to me off on SPSS. I am first wondering if with PES ...
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1answer
114 views

Time dependent covariate SPSS

I am attempting a time dependent covariate analysis using SPSS but end up running into some difficulties. This is the first time I am trying it using SPSS so would appreciate some advise or direction. ...
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2answers
52 views

What type of ANOVA? Three types of measurement in 2 groups

I am working on an assignment where I am expected to use an ANOVA test to analyse a set of data. The data set consists of two groups, the first group is a healthy group of participants, group 2 have ...
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SPSS vs R: test of flatness in profile analysis

I'm trying to do a profile analysis on a relatively simple design, but I'm getting different numbers between R and SPSS for specifically the test of flatness My data looks like this: ...
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1answer
26 views

How to model percentage dependent variable using logistic regression in spss

I have some aggregated data. Indep. Dep. N 1.3 78% 23 1.2 67% 20 Indep var the average score of people in a particular region. Dep. var ...
274
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26answers
99k views

Python as a statistics workbench

Lots of people use a main tool like Excel or another spreadsheet, SPSS, Stata, or R for their statistics needs. They might turn to some specific package for very special needs, but a lot of things can ...
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2answers
877 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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10 views

Log transformation in SPSS for percentage dependent var

indep_avg dep_% Frequency 3.4 5.6 67 5.6 2.5 96 3.2 6.3 23 I have some aggregated data. The Independent ...
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How to infer a relationship between a categorical variable with 2 categories, and a discrete, interval level quantitative variable?

I am looking to use SPSS statistics / graphs to infer a relationship between a categorical variable with two categories, and a quantitative variable (income) with defined parameters (meaning it is not ...