All Questions
3,928 questions
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93
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Need help in determining what tests to run in SPSS
I'm trying to find out whether there are any relationships between variables in my data set from Pew. I have two independent variables and one dependent.
My first independent variable comes from a ...
- 1
0
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0
answers
136
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How to correlate scale and nominal variables in SPSS? [duplicate]
I want to run a test in order to identify if there is any correlation between the length of in-hospital stay (Scale) and the kind of the procedure (Nominal with three options; abdominal, cardiac and ...
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0
answers
3k
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Choice based conjoint with SPSS
Is it possible to run a Choice Based Conjoint analysis (preferably with also no-choice option) with SPSS? Do I need a particular package for that? if not possible with SPSS is it possible with Stata?
...
- 11
0
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0
answers
799
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Post-hoc with Bonferroni a correction after ANOVA with repeated measure in SPSS
does somebody know where I can find the t value of post-hoc tests with Bonferroni correction when using SPSS.From what I get so far, I only see p values. Should I add a command in the script? Thank ...
- 1
0
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0
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459
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SPSS: How to split distribution evenly to analyze subgroups
I have a normally distributed SPSS dataset with 1400+ cases. I want to create sub-groups based on "age in months" that are distributed evenly. The dataset ranges from 12 to 60 "age in months". ...
- 1
0
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0
answers
189
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Explaining why the slope varies in varying slope model?
When I fit a multilevel varying slope model, it is easy to summarize the variation in slope. However, I have not yet seen any materials that discusses how to explain such variation (i.e. what about ...
- 4,610
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0
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541
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How the quality of clusters made in SPSS can be evaluated?
How the quality of clusters made in SPSS with the method "TwoStep clustering" can be evaluated? Which test should be applied to be sure that the quality is good.
- 101
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1
answer
517
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Multiple Correspondence Analysis: SPSS treats 0 as missing value in indicator matrix
I have a data set with several ordinal variables. In order to perform a MCA
I've learned that the data must be structured as an indicator matrix.
E.g. I transform the 3-level variable knowledge into ...
- 3
0
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0
answers
56
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Need help setting up multilevel logistic regression
I am trying to see the effect of a certain intervention in schools. The outcome variable is binary. We have students within schools. Also students' age is a covariate (doesn't changed before and after ...
- 331
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0
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2k
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Identifying multivariate outliers in a large sample with missing data, using SPSS
I'm a psychology PhD student doing analysis on a relatively large set of data, obtained via online surveys. The purpose of the study is largely to determine normative data for a population of adults, ...
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0
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796
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Is my sample suitable for elastic net? What are the assumptions?
I was hoping to use multiple regression to identify significant predictors but I have a tiny sample size (group 1 n=9, group 2 n=37) so I'll be unable to do this. I have read that regularisation ...
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1
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108
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Need help with deciding on statistical test for three separate instruments
So I am trying to analyze my data. I used the following scales: Brief RCOPE, the Brief Multidimensional Measure of Religiousness/Spirituality (BMMRS), and the Satisfaction with Life scale (SWLS). They ...
- 1
0
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1
answer
95
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How to test for differences among 3 treatments pre & post, all within subjects?
I want to compare the changes in blood pressure occurring following 2 anesthetic drugs. So in a crossover design, each participant comes for 3 sessions and gets either of placebo, drug A or drug B on ...
- 21
0
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1
answer
333
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Wilcoxon Rank Test or T-Test? [duplicate]
What data analysis is better? or fit for my data?
I've used Likert scale for my questionnaire (1-5) and I have 387 respondents.
Wilcoxon Rank Test or T-Test?
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0
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0
answers
349
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Twostep cluster analysis and autoclustering statistics
In older versions of SPSS there was displayed an auto-clustering statistics table with e.g. BIC criterion and its change for various cluster solutions. In later versions of SPSS (e.g. 21) I do not see ...
- 265
0
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0
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149
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Cluster analysis of binary data [duplicate]
I have 2000 questionnaires from respondents which ask 33 different questions about which issues are present in their lives - i.e. alcohol abuse, domestic violence, mental health, child abuse, learning ...
- 73
0
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0
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195
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Friedman/Wilcoxon test. How to enter data for multiple repetitions?
Id like to run a non parametric test such as the Friedman test on a dependent variable of my 8 subjects who have done a task under four different conditions.
I only found examples of how to input the ...
- 31
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1
answer
4k
views
How to Calculate silhouette coefficient in SPSS for clustered data set?
I am having a pre clustered dataset with data and the action cluster identified for it using a custom clustering method. I am looking to calculate silhouette coefficient on this clustered dataset ...
- 13
0
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0
answers
472
views
Error messages when doing regression in SPSS
I need to do a number of regressions in SPSS but keep getting error messages. For example -
"There are X cells (i.e., dependent variable levels by combinations of predictor variable values) with ...
- 315
0
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0
answers
334
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Compare regression coefficients within one sample
I run two univariate linear regressions within one sample (same subjects, two different conditions). Now I would like to know how to compare the regression coefficients in order to find out whether ...
- 1
0
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0
answers
1k
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SPSS Amos Binary Outcome - Model Fit
I was just wondering if anybody could help me, I'm conducting a path analysis in SPSS Amos with a binary outcome. I've specified the variable as binary using Tools>Data Recode, I've then calculated ...
- 121
0
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0
answers
3k
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Scatterplot correlation with covariate (partial correlation) in SPSS - how?
I'd like to make a scatterplot of a partial correlation - so a correlation with covariates. How should I do this in SPSS? If necessary, I could also do it in R. The most important thing is to show the ...
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0
votes
1
answer
162
views
Contradictive results of correlation and intergroup comparisons
I got strange results in spss and I don't know how to explain them statistically.
I made correlations between:
1) personality and emotional inteligence (EI)
2) personality and emotional competence (...
- 121
0
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1
answer
759
views
Grouping cases on certain criterion
You experts have been helpful so many times that I read others' threads, but this time I have to ask a new question.
Long story short I need to group all my cases into 4 categories. Could someone ...
0
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0
answers
48
views
How to adjust for a continious variable when the value 0 is distinctly different from the others? [duplicate]
Lets say I want to regress a variable on a covariate which has distinct value zero but the all other values are following some smooth function? It could be e.g. Years of beeing a mom (once you are a ...
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0
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0
answers
1k
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Fisher's Exact: why no test statistic for 2x2 tables in SPSS
Whenever I have used the Fisher's Exact test on tables larger than 2x2 contingency tables, SPSS has produced a test statistic that I can quote in my work. However, when I do the same with 2x2 tables, ...
- 75
0
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0
answers
90
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Dichotomised data-how to test for a difference(potentially independent t-test) SPSS
I am using a 2X3X4 design, which has the following ivs: Social Anxiety Scores(formed two groups,essentially high and low scores) 3 emotions and 4 gaze directions. I need to test if the groups are ...
0
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0
answers
89
views
power/sample size for a complex set of equations
I run an experiment in which several teams perform several tasks each (not all teams perform all tasks, but in general, I can make sure that enough teams perform any given task, and that each team ...
- 569
0
votes
0
answers
234
views
How to analyse the relationship between many categorical variables
I have a number of categorical variables, each with varying numbers of levels:
gender of client (m,f)
age group (0-8, etc.)
diagnosis (mild, moderate, severe, profound)
location (community, ...
- 13
0
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1
answer
588
views
Increase of odds ratio in a non-significant predictor
I ran a hierarchical logistic regression with 2 blocks/predictors:
I found out that block 1 is not a significant predictor, but block 2 is. Still: the odds ratio for block 1 is MUCH higher (2.90) ...
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0
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513
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Can I combine ENTER method and Stepwise in a hierarchical regression? [duplicate]
As the title suggests, suppose I want to enter three blocks of variables --according to a theory that I am testing-- and then on the final step, I want to enter few additional predictors (not from the ...
- 21
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0
answers
105
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0
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0
answers
3k
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Box and whisker plot or bar plot with mean and SE?
I am trying to present my data in a meaningful way. To do so, I thought it is a good idea to use a box and whisker plot, because, it shows min, max, median and skewness of data. However, due to ...
- 153
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0
answers
4k
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SPSS: Crosstabs multiple comparison
I have a table with 11 columns and 2 rows. Column 1 is the control group and I want to compare all the other columns with it. I'm not interested in comparing columns 2 - 11 with each other and I'm ...
- 450
0
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1
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244
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Can I use Mean values of Likert responses instead of factor scores in case of skewed values?
I have five-point Likert scale responses (1-most imp, 5-least imp) for 14 items that I want to convert them into 5 factors with confirmatory factor analysis (CFA). I already have designed which item ...
- 323
0
votes
1
answer
973
views
Non significant Pearson correlations included in hierarchical regression?
I would like to perform hierarchical regression in which all variables are based on previous research/theory. But when I perform Pearson correlations, I found that some variables did not correlate to ...
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0
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0
answers
147
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How to fit a multiple regression model that takes into account 50 days of each individual's history
I am using simple linear regression to predict the number of days of school a single student might miss after 250 days using their cumulative daily attendance data over the first 50 days of the ...
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0
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433
views
Survey data analysis in SPSS and in Stata
When the survey design is complex, say, a 3-stage stratified cluster sampling design, then we have to use sampling weights. When I use SPSS then I see that the sampling weight it uses is the raw ...
- 3,625
0
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0
answers
395
views
Goodness of fit vs. significance
If you had two models - one with a better fit, and one with predictors of higher significance - which one would you choose?
Keep in mind that both models are considered a good fit. One has a 3% ...
- 681
0
votes
1
answer
289
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How can I interpret binary logistic table?
I´m beginner with SPSS and I have on problem on interpreting binary logistic results. So I have this table:
Variables in the Equation
...
- 3
0
votes
0
answers
1k
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Analyzing reflected and transformed variables
I want to perform multiple linear regression on my variables; since my dependent variable was negatively skewed, I reflected it and then I log transformed it.
My independent variables was positively ...
- 843
0
votes
1
answer
180
views
Proportion Composite score for DV in rANOVA- Need Help Interpreting Results
In my design, I have 3 binary items for each condition (4 conditions total) meant to measure the same thing. All participants were in all conditions (repeated measures, 12 scores each).
I made a ...
- 137
0
votes
1
answer
3k
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PCA with oblimin rotation: should I interpret component matrix, pattern matrix or structure matrix?
I conducted a principal component analysis (PCA) with direct oblimin factor rotation in SPSS.
Because by that time I didn't know any better, I used the COMPONENT MATRIX for interpretation. I added ...
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3
answers
8k
views
Correlation and group difference with unequal sample sizes
My sample is 60 participants.
At first, I did not expect to analyze the correlation,
but the result is interesting,
so I would like to.
The 60 participants are 50 people who have good reading skill ...
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0
votes
1
answer
234
views
How to analyse cross-cultural similarity in groups with very different responses?
There are 40 audio files (classical music) and a choice is given to select an answer among 9 emotions. Out of these 40 audio files I compute 8 variables and these variables are connected to the 9 ...
- 107
0
votes
1
answer
2k
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binary logistic regression analysis (method=ENTER) model has all beta values are statistically non-significant
My binary logistic regression analysis (method=ENTER) model has all beta values are statistically non-significant.
Should I include these predictors in the final binary logistic regression equation?
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-1
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1
answer
71
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HELP: How to compute a mean for specific cases, NOT the entire dataset! [closed]
I am trying to compute a mean of several variables for just two cases, rather than compute the mean of several variables and include all the cases in the dataset. How does one do this?
Thank you for ...
-1
votes
1
answer
2k
views
Using Beta to interpret interaction in general linear model
Following the question here, someone suggested that I could just look at the B column in SPSS "Parameter Estimates" table to interpret the interaction.
For instance, the B column for one of my tests ...
- 3,345
-1
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1
answer
292
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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) ...
- 85
-1
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1
answer
239
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How can I change the scores to make interaction effect in two way ANOVA significant?
My question is how to make an interaction effect become significant in two-way ANOVA.
If my main effect A has an F value of F(1,80)=25.5 for example, and my main effect B has an F value of F(3,80)=15,...
- 1