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

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Decision tree analysis in SPSS

I am newbie in the field of analytics so my question could be naive. I tried searching the answer before posting but could get my hands on the exact answer I am looking for. I have a simple model to ...
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13 views

How to input 2AFC data into SPSS

I've conducted some thresholding experiments using 2AFC. I'd like to input this into SPSS to run some analysis but I can't think of how to organise my variables. I mean this question as more a ...
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1answer
28 views

Manually scoring logistic regression model in SPSS? [closed]

First off, I'd like to apologize for my cluelessness, but I've come across a problem that I honestly have no clue how to circumvent. My programming skills are extremely limited, and my company uses ...
2
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1answer
32 views

Get Logistic regressions odds from equation result

By using logistic regression in SPSS I get an equation that looks like this: 0.1535 * X1+ -0.0002973 * X2 + -114.9 * X3 + -114.0 * X4 How do I transform the result of the equation to the odds ...
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2answers
62 views

Help on deciding how to perform a regression analysis on my data, and why? SPSS, Count model, Panel data

I am currently in the process of analyzing some data for my master thesis, however I have had little statistical teaching, and none regarding panel data regressions. My dependent variable: Count data ...
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1answer
25 views

solution for large contingency table

I have performed logistic regression using SPSS on my data with a dichotomous variable as the dependent variable with three independent variables and three covariates (they are mostly categorical) ...
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17 views

Which test to use: Mann-Whithney U or Spearmans rho or both?

I have the following question: I have a sample group, which is divided in to two subgroups: "good" and "bad" people. I have their points achieved in an IQ test. Points are grouped into 4 categories ...
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54 views

Interpreting GLMM output in SPSS

In SPSS I carried out a linear mixed models analysis by going to Analyse - Mixed models - Generalized Linear... I know how to interpret my categorical data output (I hope) - one of the categories is ...
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35 views

analysis of change and clustering

I want to do an analysis of change over two time points for a sample of children who move from primary to secondary school. Some children will move home, but all have moved school. Predictors: home ...
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178 views

Multiple conditional probabilities

Similar questions have been asked in this context but this one seems a bit different. [Aim] We would like to find out what the probability is of a person purchasing a 4USD column D (see below) price ...
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34 views

How to compare 3 slopes in a repeated measures Linear Mixed Model

I am running a linear mixed model with a random intercept. I have 3 groups (0, 1, 2) with a repeated measure (time) of a test score. I am comparing trajectories and since SPSS uses the last group as ...
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34 views

How to construct a composite measure using several items in SPSS?

For my master thesis, I have to do a regression analysis. But, as an independent variable, I have to construct a composite measure, being perceived importance (of interest groups). I have 9 variables ...
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38 views

Issue in Interpreting SPSS output of GLM repeated measures

I have a data set with repeated measures for each individual. That is there a re two groups, treatment and control. And each individual is measured at 3 time points. But there are missing values. That ...
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6 views

Which test to do for comparison effect context over time

I'm currently working on my dissertation, and have finally gotten to the point to where I can conduct the analyses for my hypotheses. My main hypothesis is: 'Study organizations have a positive ...
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20 views

Between groups two way ANOVA - time points as an IV

I'm looking to carry out a between groups two way ANOVA and need some help. The first IV is the group (two levels - control and intervention) and the second IV is behaviour across time (behaviour ...
2
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2answers
129 views

GLM with multiple imputation or mixed model

I have a data set with repeated measures with two treatment groups where each subject is measured at 3 time points.But the data set includes missing data. In SPSS if I use ...
3
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1answer
36 views

How to do normality test if one factor consists of 5 questions?

I have 4 independent variables and 1 dependent variable. In my questionnaire (a likert scale), each of the factors consists of 5 questions (items). How do you do the normality test in this situation? ...
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34 views

Interpret nonsignificant mediation linear regression analysis

Undergraduate psychology student here with a probably easy question. I tested a mediation hypothesis with SPSS using linear regression. I did not find this hypothesized mediation, but I still have ...
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16 views

Two way mixed design ANOVA

In the article here in slide 27 two way mixed design anova it says that the data are represented as But does this mean that the same subject is in both intervention and control groups? Can this be ...
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39 views

Interaction with Continuous Variable and Between Subjects Variable

I am trying to test the interaction between three factors: One is a within subjects factor ("Scene Component": memory scores for difference scene component types: objects vs. backgrounds) One is a ...
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26 views

Mixed effect modeling SPSS: within-individual

I’m new to mixed effect modeling in SPSS and wonder if anyone could assist me with the analysis: I have longitudinal data from one country as follows: For 20 time points [years] I have the average ...
3
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1answer
104 views

R-squared as criterion to choose between linear and non-linear regression

I am working in some regression models to forecast opinions based on general demographic characteristics, and I'm not sure how to choose between linear regression and curve estimation (I'm using SPSS ...
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59 views

Multinomial Logistic Regression: Redundant Parameter

I'm running a Multinomial Logistic Regression in SPSS Version 22. The Dependent variable is CameraBrand (options are B, R, or Field - B and R are observations made from the two camera brands, Field is ...
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1answer
54 views

How to compare means in two or more variables?

I am a newbie in statistical analysis and trying to figure out way(s) to compare means in different variables. I have three variables (seven point likert type data but allowed to treat as scale) ...
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26 views

Error: There are no cases in the testing sample

I have a problem with ANN in SPSS, I tried to run it on my data, and it works fine for one set of my data but for another set it gives me this error One or more cases in the testing or holdout ...
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49 views

Intraclass Correlations ICC1, ICC2, ICC3?

I am doing some research for my teacher training. I am looking at the agreement between student-assessment and teacher-assessment. Essentially there are 4 tasks. Students scored the task and I ...
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153 views

Meaning of negative elements in Principal Component Analysis(PCA) rotated component matrix

Suppose that we have this rotated component matrix from PCA (SPSS output): ...
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36 views

How we can calculate squared factor loadings in Principal Component Analysis(PCA)?

This snapshot is from THIS article: What is Squared factor loadings and how we can calculate it. Any link between above snapshot and below snapshot of SPSS output? there isn't any relationship ...
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2answers
440 views

Very different results of principal component analysis in SPSS and Stata after rotation

For my PhD thesis I have to do a Principal Component Analysis (PCA). I didn't find it too difficult in Stata and was happy interpreting the results (I know there is a difference between factor and ...
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18 views

Is there an accepted way to compare within all demographic categories (e.g., within males, within females, within whites, etc.) using MANOVA

I have three experimental groups (group A, group B, and group C), and gave all participants the same 50-question questionnaire. I then can run a MANOVA to determine if their responses (quantitative) ...
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36 views

Which plot do I need to use to show my data?

I've checked for which X and Y we get which binary value of another variable. I want to plot these X and Y as axes and show the boundary - a line under which the binary value is 0, above it it's 1. I ...
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14 views

SPSS Output - MANOVA & Measurement Items

I'm desperately trying to produce the following outputs in SPSS (Manova & Measurement Items): For the measurement items, I've also been asked to include a column with the cronbach alpha's ...
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0answers
17 views

Why would standardized betas be high (e.g. .66) but non-significant in moderated regression?

Running a moderated regression using PROCESS macro in SPSS (issue replicated by running the same moderation using mean-centered variables in SPSS linear regression command box), I am finding that the ...
2
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1answer
64 views

Modelling combined linear and quadratic age effects

I am running a GLM (Type III) with several predictors, including ${\rm age}$ and ${\rm age}^2$ as predictors. I am interested in knowing the combined effect size and p-value of ${\rm age}+{\rm ...
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17 views

ANCOVA model with non-significant variables performs better?

I'm running an ANCOVA test with 2 dichotomus and 1 ordinal variable as fixed factors and 2 continuous variables as covariates. I was advised to remove any non significant factors because with them ...
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50 views

SPSS Spearman test, how to determine significance?

I did a Spearman test on 2 ordinal values (likert scale), my hypothoses are as follows: Null Hypotheses: There is a correlation between participants who view images as an important tool and ...
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49 views

Factor Analysis - Rotated Component Matrix Error

I haven't got good English but i have a problem: (for my master thesis.) I did factor analysis, deleted 4 questions and the most lower points are: ,392 and ,393. So, i go on and deleted 0,392 ...
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112 views

Any other way to report convergent and discriminant validity of the instrument?

After Cronbach test on data received from answering to questionnaire that is available under the link: ...
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49 views

Beta Regression for Multilevel / Hierarchical Linear Models in any Statistics Package?

I would like to run a (if possible zero-one-inflated) beta regression in a multilevel model with three layers. So far I have not been able to find any programs or packages that would support such a ...
2
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1answer
31 views

How to process Binomial-Binomial data on SPSS for hypothesis testing?

There are 2 groups of 100 pregnant women: the first are malnourished and the second are well-nourished. A COHORT research is being done on them to determine if malnutrition is a risk factor for low ...
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26 views

Interpretation of Bootstrapping's Result

i am currently doing my final thesis and in need for help. I am using Bootstrapping to identify the indirect relationship of celebrity endorsement (CE) to purchase intention (PI) with brand image (BI) ...
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1answer
97 views

Log Transformation

I am planning to run a 2x2x3 repeated measures ANOVA on reaction time data pre and post treatment. However, my data is skewed and I wanted to do a log transformation but have few questions. Can I ...
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58 views

Is weighing cases allowed/necessary for the Kruskal-Wallis and its post-hoc tests?

I have a dataset where I have respondents from 3 different countries (USA, NL & DE) and use the Kruskal-Wallis to determine if there are any statistically significant differences regarding ...
3
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177 views

chi square for trend - SPSS

I have followed fourth-year university students for ten years, recording their attitudes to a particular lecture. The outcome is binary (good-bad). I have 10 rows and 2 columns, meaning year and ...
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37 views

How to find a correlation with only two observations?

I did an A/B test and I have the data for the likeability of two ads and their click-through rates: Ad 1 Likeability = 2.5 Ad 1 Click-through rate = 0,015 Ad 2 Likeability = 5 Ad 2 Click-through ...
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31 views

Is there moderator or not? Centering and unsignificant b

I am trying to check if the relationship between X and Y is a moderated by M. Here is my model: Y = b0 + b1*X + b2*M + b3*X^2 + b4*X*M + b5*X^2*M where X - independable variable, M - moderator, Y - ...
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10 views

Investigation of X on time 1 has an influence on the change of Y between time 1 and time 2

I would like to investigate if X on time 1 has an influence on the change of Y (= absenteeism) between time 1 and time 2: does X on time 1 increases or decreases Y on time 2 controlled for Y on time ...
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30 views

Pooled results missing from GENLINMIXED multilevel analysis of multiple imputation data

I am running a multilevel analysis with the GENLINMIXED command (Analyze>Mixed Models>Generalized Linear Models) on a set of multiple imputation data. The data file was generated by the Multiple ...
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1answer
278 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 ...
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1answer
190 views

Cronbach's alpha: dependent and independent variables [closed]

When I listen / read manuals on how to measure Cronbach's alpha, none of them mention how to deal with independent and dependent variables ( variables Role in SPSS). Could someone advise if it is ...