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

learn more… | top users | synonyms

2
votes
2answers
5k views

How to determine percentiles/quantiles in SPSS?

I am really new to statistics and now I have some data and I want to make a frequency table with the yearly salary (a variable in my data). In the end, I need to be able to say what is the maximum ...
0
votes
0answers
8 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) ...
0
votes
0answers
24 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 ...
0
votes
3answers
1k views

Unequal sample sizes for two-way repeated measures

I have 3 different treatments with the observations of 6 different repetitions. However, all these different treatments (groups) have different numbers of patients. The first group has 26 patients, ...
0
votes
0answers
16 views

Plotting results of mixed design ANCOVA SPSS [on hold]

I conducted a mixed design ANCOVA with group as between subjects factor, trial type as within subject factor, and IQ as a covariate. I'd like to represent the results of the ANCOVA in a scatter plot, ...
0
votes
1answer
23 views

Is it possible to conduct confirmatory factor analysis in SPSS?

I found the factor analysis of SPSS seems to only support EFA, but I am not sure. Is it possible to conduct CFA in SPSS? If not, what statistical tool can be used to conduct CFA? I especially need ...
0
votes
0answers
8 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 ...
1
vote
1answer
473 views

To find significant differences between means using repeated measures GLM

I am new in using SPSS and stuck with General Linear Model [which is just linear model] procedure. I have 8 cognition variables like latency, thigmotaxis, spatial, quadrant, nt quadrant, proximity, ...
1
vote
1answer
260 views

optimal scaling / CATREG 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 ...
2
votes
0answers
13 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 ...
0
votes
0answers
18 views

How to convert World Fertility Surveys 1975’ raw data-DAT files into a set of Stata dta files [on hold]

How to convert World Fertility Surveys 1975’ (for Pakistan) raw data-DAT files into a set of Stata/SPSS data files. I have found this link but this didn't work Turning the World Fertility Surveys’ raw ...
0
votes
0answers
11 views

Component score covariance matrix [on hold]

What does the component (factor) score covariance matrix in PCA or FA explain?
0
votes
0answers
9 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 ...
0
votes
1answer
123 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 ...
0
votes
0answers
23 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 ...
0
votes
0answers
18 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 ...
0
votes
0answers
14 views

SPSS - Using K-means clustering after factor analysis [migrated]

I am a developer that has been tasked with working out how previous results using SPSS were gathered, so we can repeat the process with some new data. We can't ask the person who did the original ...
0
votes
0answers
17 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: ...
2
votes
3answers
7k views

What to do with very low Durbin-Watson?

For 100 companies, I have collected (i) tweets and (ii) corporate website pageviews for 148 ...
2
votes
1answer
3k views

Does anyone have experience with IBM's “SPSS Modeler”?

SPSS Modeler seems like a great tool for data mining (especially for prediction etc.) but it is extremely costly for individuals like me (around 20,000 euros excl. tax). There is also a video. I am ...
0
votes
0answers
17 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
votes
1answer
23 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 ...
0
votes
0answers
17 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) ...
0
votes
3answers
85 views

SPSS - How do I analyse two categorical non-dichotomous variables?

I'm having some issues running an analysis with two categorical variables that are both non-dichotomous... Some background information on my study: My study focuses on how young adults sexually ...
0
votes
1answer
86 views

How can I find tendencies in specific cases between two groups?

I'm doing this project where we are investigating whether social networks can influence peoples distinctiveness. Briefly summarized, we have primed a group with a social media and another is the ...
3
votes
0answers
49 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 ...
0
votes
0answers
43 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 ...
0
votes
2answers
526 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. ...
5
votes
1answer
90 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}\\ ...
3
votes
0answers
30 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 ...
0
votes
0answers
36 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 ...
3
votes
1answer
368 views

Find out if there is a way to create BMI weight category variable

I am working on a project and have to find a way to break my data into percentiles. The variables that I already have are gender, age in months and BMI. If I am able to calculate the percentile that ...
235
votes
24answers
80k 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 ...
1
vote
0answers
23 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 - ...
0
votes
0answers
8 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 ...
0
votes
1answer
36 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 ...
0
votes
0answers
5 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 ...
0
votes
0answers
234 views

Combining variables in SPSS, if multiple regression is appropriate for likert scale

Im looking into how different types of coping strategies moderates the relationship between working and suffering parental stress. In total I have 5 hypotheses, of how the variables correlate with ...
2
votes
1answer
235 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 ...
12
votes
4answers
2k views

Interpreting discrepancies between R and SPSS with exploratory factor analysis

I am a graduate student in computer science. I have been doing some exploratory factor analysis for a research project. My colleagues (who are leading the project) use SPSS, while I prefer to use R. ...
0
votes
1answer
48 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 ...
8
votes
2answers
169 views

Balanced repeated measures design

Okay this is my problem: I have 12 participants. Each participant spent 3 nights in my lab doing a reaction time task at four timepoints during the night(12, 1, 2 and 3 oclock), with one week ...
1
vote
1answer
261 views

One way Anova Test validation

Let me give you an example to show what i am trying to. Let's say 50 patients started a cure for a disease and it took 2 months. So, I want to compare the first month's tumor sizes to the second ...
1
vote
1answer
213 views

How to compare means of repeated measures between groups in SPSS

I'm having trouble regarding which test to run on my data in SPSS. I have two groups (condition1 and condition2) which is also my independent variable (categorical). Both groups were asked to rate ...
0
votes
0answers
9 views

comparison of Akritas et al's & McKean et al's nonparametric ANCOVA models & script of Akritas' model

I'm currently analysing the results of a pretest-posttest experiment with a categorical independent variable with four levels (three treatment groups and a control group) and a continuous dependent ...
5
votes
1answer
616 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 ...
0
votes
1answer
69 views

How do you suppress imputed data and only display results for the pooled data?

I've done 15 imputations and am now running various tests on the new data, but all I'm really interested in is the pooled results at the end. The long list of imputations (especially in a test like an ...
0
votes
0answers
12 views

How to formulate my design in method section

Before they do the experiment they have to fill in a questionnaire to measure their social motive. My actual experiment is about noise vs. no-noise / reward vs. punishment (within subjects). So it's ...
0
votes
1answer
1k views

Mixed model in SPSS with random effect and repeated measures

I am working on analyzing a dataset that involves repeated measures data. The data was previously analyzed by a colleague using custom code written in C++, but I have expanded the dataset and am ...
0
votes
3answers
14k views

What am I supposed to do if Cronbach's alpha is negative?

I have gathered data from 130 questionnaires and I have 30 variables. Cronbach's alpha is badly negative. I have checked everything I could think of, but the result did not change. SPSS file is ...