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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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SPSS correlation matrix from multiple imputation dataset, p-values and df

I use a multiple imputation dataset to create a matrix of correlations between a few variables of interest. The pooled correlation matrix does not show significance or df, unlike the original matrix ...
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Checking PH assumption for a time dependent (T_COV) variable in a Cox PH-regression: with or without the original covariate in the regression?

I am performing a cox proportional hazard regression on survival, in a sample in which almost everyone dies in the follow up period. I have little knowledge on statistics in general but i am reading ...
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13 views

Standardization based on subsamples [on hold]

I need to analyze data on the cognitive performance of a sample participants from clinical (36 participants) and a non-clinical group (~100 participants). 1) What would be the correct approach to ...
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6 views

Correlations and Hierachical Regression

For my dissertation I've carried out a hierarchical regression. My results have shown: -correlations. Neuroticism is correlated non significantly .000 on SPSS to my dependent variable. Mood is non ...
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31 views

How should I deal with continuous independent variables in a regression for ordinal dependent variables?

I am doing a research for which I will perform a data-analysis in SPSS. My dependent variable is 'father involvement'. I have four different questions that have measured different forms of 'father ...
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6 views

How does SPSS MLP procedure choose the number of neurons in a hidden layer

The SPSS MLP procedure can automatically choose the number of nodes in the hidden layer. How does it choose this number? How confident can I be that this number is anywhere near optimal?
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Accounting for gender differences between two groups [on hold]

I have 2 separate groups of patients and I'm comparing frequency of attendance in either group. I would like to perform an analysis that accounts for gender as a separate variable but I'm not sure ...
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6 views

How to do such Monte-Carlo operation in SPSS? [closed]

Say i have a set of 8 values (4.34, 4.32, 4.35, 4.45, 4.25, 4.09, 4.29, 4.46). Step 1: I would like SPSS to find the CV of two randomly sampled values . And then repeat this process for 10000 times ...
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SPSS Paired Samples T-Test outcome interpretation

Hypothesis: -Blood pressure will decrease after intervention Results (blood pressure): Systolic bp before mean: 102.00 Systolic bp after mean: 97.10 Diastolic bp before mean: 70.80 ...
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7 views

How to calculate contrast for mixed designs with spss syntax? [on hold]

We are trying to understand how to calculate a planned contrast for a mixed model ANOVA with SPSS syntax. We have two factors one within (IMI) and one between (<...
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1answer
30 views

What SPSS test should I use for blood pressure pre- and post-intervention for comparison?

I have 10 participants who consumed an intervention for 3 weeks. I would like to look at any significance between pre-intervention and post-intervention readings. What SPSS test should I use? I ...
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Same participants, same variables, collected three times - What SPSS analysis?

I am testing the relationship between two variables, A and B. I collected A and B for the same group of people each month three times. I am expecting that A and B will vary within people, but that A ...
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7 views

Midpoint removal from 5-pt liker scale

I have removed midpoints from a 5-point likert scale instrument on my supervisor's advice. When I did some reliability analyses - SPSS showed that almost half of my cases were excluded. So we ...
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Getting pooled F-values and p-values for multiply imputed data in SPSS?

When working with a dataset created via multiple imputation, SPSS pools some values but not others. For example, in multiple regression, I can get coefficients, t-tests for the coefficients, t-values ...
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7 views

Log-Linear Output Help

I ran a loglinear model with 3 variables. Internet Use (Y/N), Nervous Breakdown(Y/N), and Happiness (3 levels). I understand by two way interactions are significant, but I am getting lost trying to ...
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6 views

How do you run a moderation analysis and post-hoc in Chi square in spss?

How to test for an interaction in Chi-square? Is it also possible to then test for a further interaction in one of the groups? E.g. I test for an interaction in a whole dataset, then split data (?) ...
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6 views

The function of TIME in longitudinal MLM

I am conducting longitudinal multilevel models with Daily observations as level-1 variable and PARTICIPANT as level-2 variable. Predictors and outcome variables are measured every day. I am confused ...
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6 views

Simultaneous non-significant variance parameters but significant co-variance parameters mixed models/random effects

I specified a linear mixed model in SPSS: TNA_HRQOL is the DV TIME_0 is a rep measures factor (0,1,2) which I specified as a covariate TK_Name (doctors) is LVL3 subjects, TNA_Name (individuals) is ...
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3answers
25 views

Comparing means in large samples: effect size and p-value

I have a large sample (10000+ per location) of temperature measurements which I would like to compare between 3 locations. I'm checking if there is a significant difference in temperture means between ...
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17 views

Hypothesis testing: multiple linear regression

i need help with testing the following hypothesis: H1: demographic variables influence the quality perception of French wines I conducted an online survey that asked for the following demographic ...
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1answer
19 views

Which method to use for predicting variable a (score based on a likert scale) with an variable b and c

I have three variables. The energy behavior is a score based on a Likert scale. The other two variables age and education are nominal. Now I want to show that the two nominal variables, age and ...
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1answer
23 views

Cross Correlations Reversed - SPSS and R

I'm wondering if anyone else has noticed that cross-correlations are reversed between SPSS and R. Here is an example of the exact same data run in both R and SPSS (V23). Note how the the axis is ...
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29 views

Chi Square and Fisher’s exact test with Monte Carlo

SPSS can’t calculate Exact test for 4x7 table of my data so I did it with Monte Carlo. The output is given below. Considering the rules of Chi-square, I should use Fisher’s $p$-value for the result of ...
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21 views

SPSS ANCOVA interaction significant once main effects removed

I'm running a 2x2 factorial ANCOVA, where the factors are either being in condition A or B and either being part of a certain group or not, with two covariates being age and gender. When I run the ...
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Interpreting findings of moderation using PROCESS Macro

I have recently conducted a moderation analysis using the PROCESS Macro plug-in for SPSS. I have tested the moderation effect of W (categorical using dummy variables) on the relationship between X (...
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Superimposing regression lines from 2 simple linear regression models into one graph [closed]

SPSS question, really. Been asked to produce two simple linear regression models, one with an intercept, one without (both for one set of data points). But they have to be on one scatter plot for ...
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24 views

Cohen's Kappa in R versus SPSS

I was working with R and SPSS trying to determine Cohen's Kappa for a dataset. I decided to test the two and see if they would end up getting the same numbers. However, they did not. I was wondering ...
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In a within-subject experiment design, I have 2 independent variables and 1 dependent variable. Which statistical test do I use?

I have collected pupil size data in a pupillary conditioning study (with a baseline correction applied) in which I want to compare the area under the curve (AUC) in a pre-training control to the post-...
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How can I classify a person's score according to my discriminant variable, in a discriminant function? (multiple discriminant analysis) [closed]

I'm doing a research on 5 types of entrepreneurship (dependent variable) and personality traits (5 independent variables). As you can tell, I did a discriminant analysis as a "plus" for my prior ...
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26 views

SPSS mixed models - using classroom as an effect in the model

I'm looking at data from a health intervention study done in one middle school (16 classes/"clusters" at that school). Half assigned to control, half to intervention. Is this an appropriate way to ...
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28 views

Multiple Entries for Same Participant

I have raw data that I need to transform and unsure as to how. Manually doing it is out of the question due to the thousands of entries. I have the data in excel and I’m looking to analyze in SPSS. ...
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Tests of association between binomial multiple response set and categorical variables in SPSS?

I am exploring the decision-making factors women consider as they adjust (or don't) their work upon having children. One of my survey question was set-up as a "select up to 3 factors you considered," ...
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21 views

what type of research design should I choose?

I am trying to do a research proposal where I planned on doing a pretest-posttest experiment on 2-3 groups of subjects (measure baseline indicators of anxiety, depression, self-esteem, body ...
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How IBM SPSS calculates exact p value for Pearson Chi-Square statistic?

Usually, I use Fisher's exact test p value when the sample size is small for Pearson chi-square test. Then I realized that IBM SPSS reports exact p values for all the tests (i.e. Pearson Chi-Square, ...
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2answers
26 views

Does the total of ordinal scores on a questionnaire become scale in SPSS?

I have a questionnaire whose data I've inputted into SPSS. I wanted to ask that do the total scores of likert items become scale and no more ordinal?
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Comparing means in 2 seperate groups over three different time points

I have 2 groups, each containing 10 subjects. Both groups completed a different warm-up strategy. I would like to compare the jump height mean scores of both groups over three time points i.e baseline,...
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What statistical test should I use for moderation?

I am hoping to test an interaction effect, though being new to statistics/quant research in general, I am a little unsure as to which test would be most appropriate. I have read around using ...
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1answer
16 views

logliner analysis on SPSS with more than 10 variables

I want to run logliner analysis on SPSS Statistics 25 but I have more than 10 variables.= 1 outcome variable and 11 predictors/factors. The big number of factor variables can be explained by the fact ...
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1answer
18 views

Which command should be used in SPSS for calculating p value without confounding factors effect?

In a study, we have the disease as dependent variable ( 0 or 1 patient or healthy); some independent variables are real and some of them are confounding (some of varibles are quantitative and some of ...
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1answer
19 views

Interpretation and formulation of SEM path coefficients?

Trying to interpret and write down my SEM results, but not sure if this is 1. correct and 2. well formulated. This is what my models and parameters look like (first unstandardized, then standardized): ...
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21 views

What is repeated measures exactly?

Is repeated measure ( especially the one in spss ) a type of Anova or Regression? Is it alternative for univariate/ mutivariate regression?
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1answer
29 views

Is it legitimate to use PCA on scale totals (rather than individual questions) to uncover latent variables (Social Science/Psychology)?

I believe a latent self-control variable may be at the root of plenty of the variation I see in my dependent variable. However, I am using a secondary dataset and do not have access to individual ...
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1answer
20 views

regression with z-scores as composite variables?

So I have 5 IV's- a,b,c,d,e and one DV. a is fine as is. b & c measure the same concept and since their ranges are the same, I averaged the scores to create a composite variable. d & e ...
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1answer
37 views

Multinomial logistic regression reference category function

Bit of background info on the data and methods that I've used. I have a forest road data that consists of one dependent variable which has 4 classes (0-3). The Dependent variable reflects possibility ...
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25 views

Unbalanced Two Way ANOVA

I am attempting to finish my stats on my Master's thesis and am having difficulties with which statistics test I should be using, and how to go about doing so. I have collected chl-a samples at 15 ...
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1answer
17 views

SPSS different t values but same p?

I have previously used SPSS to run my statistics. I no longer have access to SPSS but wanted to compare my previous results to another statistical package. I have run my analysis several times in ...
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6 views

How to analyse an individual difference interaction with a mixed design - SPSS

My experiment has two factors. One is between subjects (3 levels - no, low, or high distraction) and the other is within (2 factors - tasty crisps and untasty crisps). I've already analysed this, but ...
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18 views

Testing beta is 1 with Minitab or SPSS

I would like to run a regression to test a hypothesis that alpha = 0 and Beta = 1. I understand minitab or SPSS regression will test whether alpha or beta is 0. How do I test whether beta is equal ...
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14 views

Computing a DV for a 2x2 study design

I'm conducting research for the first time (for my master thesis) and have some trouble. I have sent out a questionnaire to research mortality salience effects on purchase intention and price ...
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1answer
16 views

Paired variables?

In our research on apprenticeships in early modern times, we have a series of observations (cases), each with several variables. Each observation is unique because of its combination of the variables "...