Questions tagged [spss]
IBM SPSS Statistics is a statistical software package. Use this tag for any on-topic question that (a) involves SPSS either as a critical part of the question or expected answer and (b) is not just about how to use SPSS.
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How to interpret the output when one or two levels are significant in the seemingly insignificant categorical predictor in logistic regression
I am running a multilevel binary logistic in SPSS.
The predictor variable in question is a categorical variable with four levels. In the first fixed effect table, it seems like the predictor variable ...
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How do I determine if the difference between treatment and control is significant when they have different sample sizes?
I am currently performing a test in C. elegans mortality. In my extract and negative control, different sample sizes of worms (25-30 worms) were used due to the degree of difficulty of transferring ...
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How to interpret categorical variables with many categories logistics regression (SPSS)
I am having trouble finding any resources to help me interpret my logistic regression results. I'm using SPSS, but I don't think that matters a whole lot. I understand the odds ratio concept (as well ...
CommunityBot
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Canonical correlation using spss
I wanted to prove the correlation between 8 variables. I used spss MANOVA
MANOVA S K A E WITH D AC C AS / discrim all alpha(1) / print=sig(eigen dim).
But I don't get the canonical correlation ...
CommunityBot
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Disagreement between p-values and confidence intervals
This is a question regarding the t-test in SPSS.
I have two groups and I want to test if the two means are equal. I am using the t-test with bootstrapping. In the end I got a p-value<0.005, ...
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Bootstrapped t test in SPSS: Why are some p value cells blank?
Using an independent samples t test, I am comparing the performance of 2 groups on an activity, based on the percentage of items correct (the percentage of total items correct, as well as percentage ...
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Multiple Regression in SPSS: Insignificant coefficients, significant F-statistic, no multicollinearity
To give you some background, my thesis is looking at the relationship between 3 basic psychological needs (competence, autonomy, and relatedness) to 3 emotion regulation (ER) strategies (concealing, ...
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How to Run Linear Mixed Models in R [closed]
I am trying to run an equivalent Linear Mixed Model test in R that I have run in SPSS but can't seem to get the same results.
There are three variables in the design: The DV, Cond (fixed factor, 2 ...
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What do the differences in the Pearson & Spearman correlation tell us about the variables? [closed]
I have conducted correlations for the variables gross weekly pay and total hours worked. The Pearson's coefficient between two variables is (r=.51). Whereas for the Spearman's correlation, the ...
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Interpreting categorical interaction terms
I am wondering how to interpret results of interaction terms (see image below).
I think to know that the interaction term 1 (IV x potential moderator group 1) depicts the difference of association ...
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Repeated Measures Design but also testing order effects in SPSS
I am a psychology student using SPSS to analyse my data.
I have 2 conditions of the IV of treatment (treatment or no treatment) to test pain tolerance levels which is measured by the DV of pulse rate ...
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How to do slope comparison in SPSS? [closed]
I have data from density rearing. Organism was reared in several different densities and the number of surviving individuals was counted once a week for four weeks.
My aim is to spesify what would be ...
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Which formula for Pearson $r$ would you use in computational practice?
Considering that you have to compute (large) correlation matrix between variables x, y, z,...etc, via matrix multiplications, will you prefer $\frac{cov_{xy}}{\sqrt{\sigma_x^2 \sigma_y^2}}$ or $\frac{...
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SPSS cox proportional hazard model adjusting for age
I'm using SPSS to run cox proportional hazard model. I've five different groups and I need unadjusted and adjusted (for age) HR for all of them separately. My first group is a reference group. I've ...
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Can you run a correlation using a variable with a mixed positive and negative range?
For example, if you wanted to find a correlation between smoking and weight change and your survey items ask: "How many days, in the past 30 days, have you smoked a cigarette?" (range 0 to 30) and "...
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Statistical Analysis Software [closed]
I am a psychology student at UCF. I intend to pursue a master's degree in industrial and organizational psychology. We use SPSS in the psychology department. How prevalent is SPSS used in offices? ...
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Regression on a change between a variable before and after?
In my dissertation I am using a paired sample t test to see if there is a statistically significant difference between consumers' intention to purchase from and attitudes towards purchasing from a ...
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What should be the test value when finding important factors?
When doing One-sample t-test on a variable which ask respondents to rate a purchasing factor of a product like price on a scale of 1 to 5 with 1=least important and 5=very important, what should be ...
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SPSS: Comparing prevalences
I have a dataset of couples presenting themselves to the infertility clinic and would like to compare the prevalence of certain diseases in this group to the prevalence of these diseases in the ...
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Transforming raw scores to scaled scores using a proprietary scale
I'm working with questionaire answers from the Child Behavior Checklist (CBCL) for my master's thesis. The 113 items on the questionaire are organized into several subscales for different areas of ...
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SPSS KMeans Clustering Output Drastically Different than Scikit-Learn KMeans
I am clustering a rectangular data set with 82 records and 2 columns (a date and an integer between 1 and 2). The goal is to cluster dates that are close in proximity automatically in a way that ...
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Analyzing Likert scales
The Likert scale I am analyzing has both positive and negative questions, but all the items are answered with 4 - strongly agree, 3 - agree, 2 - disagree and 4 - strongly disagree. For analysis, ...
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Cochran's Q test with changing proportions
for my thesis I am investigating the change in proportions of children in regular and special education. The information is obtained through an online questionnaire, and I have data for 4 consecutive ...
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How to handle with missing values in order to prepare data for feature selection with LASSO?
My situation:
small sample size: 116
binary outcome variable
long list of explanatory variables: 44
explanatory variables did not come from the top of my head; their choice was based on the ...
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Data analysis mess! Huge data set, 2 factors with 2 levels each, but the levels are the same
To explain the hypothess a little bit: The factors would be emotional words and neutral words; the levels of both factors are left and right visual hemifields. The data is the participants response ...
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Ordinal Independent Variables and Dependent Variable Regression Analysis
I have 3 variables (2 are independent and 1 is dependent). All three variables are measured with questionnaires consisting of multiple questions recorded on 5 point scale. I want to perform regression ...
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Variables transforms in SPSS [closed]
I'm currently working in a linear regression in a large dataset in SPSS and would like to check several combinations of variables, eg V1+V2, V4*V8 and so on. The meaning behind this would be to have ...
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How to perform a general linear model with random intercept with data? [closed]
How to perform a general linear model with random intercept with my data with SPSS or R?
I would like to know if the CO2 emission is significantly different between my treatments. My sampling design ...
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statistical modelling for imbalanced data [duplicate]
I am dealing with a binary response (good/ bad) type data set of size 2153, which reflects a dependent variable. Out of these, only 67 are in favor of "bad" and the remaining are of "good". Also, i ...
CommunityBot
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Multinomial logistic regression
I would like to get help from an expert or anyone who knows about this. As a beginner in SPSS, I've googled the steps to do multinomial regression. I've decide to use multinomial because from what I ...
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SPSS: Comparing Regression Coefficient for 2 Models
Hope you guys could help me with a question I've been stuck on for a while.
I'm currently writing my thesis on how MRT (the railway system in Singapore) accessibility affects prices of public ...
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Interpreting results of ordinal logistic regression - ordinal dependent variable with 5 levels and continuous predictor variable
I conducted my analysis in SPSS as follows:
I fitted a generalized linear mixed model based on multinomial distribution with a logit link function.
I did that using repeated measures longitudinal ...
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How to rank dependent variables
Statistics and I are mortal enemies.
I have an independent variable (gender) and four dependent variables (A,B,C,D). For each of the dependent variable, there were multiple questions with likert ...
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Is there a way to prevent forecasting negative values in SPSS?
Currently I'm using the SPSS expert modeler, the training series is a seasonal time series, with some values close to zero in each period, and I find that when the training series have a descending ...
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ANOVA results discrepancy between R and SPSS
I ran into problems when trying to double check SPSS ANOVA calculations with R. I am aware of the difference in defaults concerning the Sum of Squares, therefore I followed guidelines for aligning ...
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How to use SPSS to perform a 2-tailed Binomial test [closed]
Supposing we have 0,1 labeled samples, when I using SPSS to perform a binomial test, and to see if case 0 and case 1 has equal proportion(0.5), the software automatically pick a two-tailed binominal ...
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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 ...
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SPSS output: Change of direction between univariate and multivariate [closed]
I am bit lost with my SPSS output. I am doing research on change management and its success factors. I set up a model with two IVs (kommunikation (communication) and Task Scoping). Alter, Geschlecht ...
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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 ...
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creating a formative construct from 4 items in SPSS
Below is an excerpt directly from a paper that I am attempting to replicate. The 4 items are survey data collected on a likert scale and I have a sample of 150 responses. I would appreciate any help ...
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Which test to use in a single group pre- and post-treatment analysis [duplicate]
I am attempting to analyse pre-existing data (using SPSS). I have one group of participants, 4 quantitative, non-parametric outcome measures, and am looking to see if there is a change in outcomes ...
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Interpretation of SPSS logistic regression output?
would really appreciate some help interpreting this output. Think I'm almost there, but just have a question about interpreting the sig. column:
This model aims to look at factors contributing to ...
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How to compare two variables with different distributions?
I want to compare 2 independent variables, but the problem is that the first variable is normally distributed, while the second variable is not. What is the appropriate test in this case? Can I use an ...
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Interaction changes f-values of main effects in Lme4?
in need of some clarity (or charity, whichever way you look at it) - haha!
Running a linear mixed regression with two within subject variables each of which has two levels (AB, XY), with the DV as ...
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Getting significance with chi squared but not with logistic regression?
I'm performing a study on a large group of single participants, testing my categorical independent vars against future relationship status. My main IV has three categories: (type 1) no attraction, (...
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Interpreting SPSS Cohen's Kappa output
When running Cohen's Kappa in SPSS, it outputs a few things.
Cohen's Kappa
Asymptotic Standard Error (ASE)
Approximate T
Approximate Significance
If I have a Kappa of 0.90 and ASE of .012, can I ...
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Time Series Forecast / Transfer Function
I'm trying to interpret the forecast values from an ARIMAX function, and I'm confused about what's happening in the actual forecasted values as I change the values for the predictor during the ...
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Regression Equation when multiple DV's (varying years)?
I have a research question that is asking how perception of quality change over time. So participants answered what they believed quality is at Year 1, Year 5, Year 10, etc.
How do I create a ...
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AVE & composite reliability with SPSS
I have some issues with an exploratory factor analysis.
Can anybody please tell me how to calculate the Average Variance Extracted (AVE) and the Composite Reliability from two factors, each with ...
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