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1.600 spss questions.

I tried discriminant analysis with lda() in R and in SPSS, but the scalings were different, why? N, how to get (Constant) with R like SPSS result? data: ...

I used the PROCESS macro for SPSS from hayes to regress a model where det_mean is the indepedent variable and y_tot the depending variable. I'm testing if this relation is moderated by two variables ...

I have a question regarding the use of SPSS (i.e. its capability) to execute a Fisher's Exact test for large, sparse RxC contingency tables. I would like to test whether or not a certain correlation ...

We are trying to reproduce the outcome of a discriminant analysis done in SPSS and run into a mystery. This link: https://stats.idre.ucla.edu/spss/output/discriminant-analysis/ explains that ...

I am learning to use Python for my statistical analyses, and while figuring out how to perform a 2-way ANOVA with statsmodels I found that my Python code yielded slightly aberrant values. Comparing ...

I have 2 sets of data: one is a list of all days in 2012 in date format (DatesA); the other is a list of dates in 2012 on which certain events occurred (...

What is the interpretation of the negative estimate ($b$ value) in an ordered logit regression? That is, an "increase of one unit in the independent variable results in an increase or decrease of the ...

What is the appropriate way to report results for linear mixed model based on the "test of fixed effects" table in SPSS? Is it just (F=xxx, p=xxx)? This isn't my data but this is an image I found of ...

I'm new to Logistic Regression and need to determine whether its valid for independent variables that are strongly coupled. Investigating, I created a fictitious sample set of sports fans to test the ...

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 ...

I am trying to reproduce the results of the PCA with rotations from SPSS in python. But there is some information I didn't find in their documentation. I am trying to do the PCA like in the FACTOR ...

I am hoping to confirm that I have a suitable way to analyse the different proportions of people who are categorized as left lateralised on the one hand, or bilateral/right lateralised on the other in ...

I am working on correlating teacher factors with student achievement. How should I prepare the data set in SPSS for 130 teachers and 4000 student scores? I also have the same question with regression,...

I am using Process by Hayes to run mediation in SPSS. I am using model 4 and have added five covariants. The results show that the pathways are significant a (p .0211), b (p .0159), c (.0395). Yet, ...

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, ...

Is it possible (or does it make sense) to check for correlation after varimax rotation, since varimax assumes that there aren't any correlation between factors (or components)?

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 ...

I am doing a logistic regression (binary DV) with 13 IV. As a first step I wanted to test the linearity assumption bw. the IVs and the logit. To do this I applied the Box Tidwell Method in SPSS by ...

Using geepack, I fit the model: ...

I've fit a transfer function in SPSS Time Series Modeler from a training set and output the predictions. I get predictions for both my training set (which was used to produce the model) and my test ...

i am conducting a research, there are two mediators that are parallel to each other, the point is when i run correlation analysis, these two mediators also show correlation with each other, is there ...

From the discussion here: Transfer function in forecasting models - interpretation I have the impression that a negative denominator coefficient for a predictor variable in a transfer function would ...

I'm trying to find a way to investigate whether religiosity correlates positively with helping other people, and whether this correlation is different depending on a 4-level manipulation (in my design,...

I'm doing a PROCESS Model 4 mediation analysis, where: X = Persuasion Knowledge (continuous) M1 = Brand Attitude (continuous) M2 = Brand Awareness, which consists of aided brand recall (dichotomous)...

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 ...

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 ...

I checked several tutorials, books and online resources, but still I do not know what 'Error(var)' in Anova with repeated measures come from? How is it calculated? I see that number of measures ...

I am doing a study where I have to compare tumor sizes measured using two different methods with the real tumor size. What I want to prove is that the absolute difference between method 1 and real ...

I read on p1 of the Stata Manual glossary that: The image of a variable is defined as that part which is predictable by regressing each variable on all the other variables; hence, the anti-...

I have speech recordings which have been assigned opinion scores (1-5). These recordings were performed by 10 speakers, 5 male and 5 female. I want to investigate the influence of both the specific ...

I have missing data that I have done multiple imputation with. I want to then use the means or 'pooled' data from the five imputations to do a repeated measures ANOVA. It seems I can't do this in ...

I am new to using syntax in SPSS and was wondering if someone could help with the follwing. I have two different questionnaires in one database - introversion (10 items; eg. T0_In_1, T0_In_2,T0_In_3, ...

At this moment, I am busy running a Generalized Estimating Equations model in SPSS. Unfortunately, I cannot use an ordinary logistic regression as the conditions are repeated measures. I asked people ...

I'm trying to figure out how to make a prediction equation from the coefficients of an SPSS ARIMA model parameter table. Based on what I understand of the backshift operator notation, I've written ...

I'm trying to figure out how SPSS is initializing the multiplicative Holt Winters exponential smoothing model using backcasting. Thankfully IBM roughly described their way of doing so .. very roughly. ...

I want to perform a MANOVA in SPSS as follows: i have a independent variable that consists of three groups (- of which the group sizes are not equal), and six dependent variables. When checking the ...

CHAID vs CRT (or CART)

3 answers, 18.971 views spss cart
I am running a decision tree classification using SPSS on a data set with around 20 predictors (categorical with few categories). CHAID (Chi-squared Automatic Interaction Detection) and CRT/CART (...

I am currently inputting data into SPSS and got stumped on one of my variables, grade level. For the purpose of our study we are looking at children in grades k-12, where specific grade is important. ...

I guess we can perform most of the operations of modeling in SPSS Statistics software itself, so why there is need of two software packages doing the same thing? If I am wrong please correct my ...

Background: Group A the control group uses a website 1. Group B the treatment group uses website B. The expected result is that Group B will have a higher understanding than group A. Hypothesis: The ...

My understanding is that $R^2$ cannot be negative as it is the square of R. However I ran a simple linear regression in SPSS with a single independent variable and a dependent variable. My SPSS output ...

I have a dataset in which I measure the response variable of a number of individual animals. I used this response variable as the dependent variable in a linear mixed model, for which I have 5 ...

Context: I am in the process of developing a scale for my thesis. My advisor has guided me to using SPSS PCA to complete my analyses. Initially we reduced my scale to 3 factors (her insistence), ...

I have questions about division of household work with option- who does the following such as cooking, cleaning, washing? The option I have is: I usually do, I mostly do, my partner mostly does, he ...

I have 2 datasets which i analyze both with R and SPSS (for professional reasons). Specifically, i use a marginal model with an AR(1) covariance structure. I have 2 covariates, namely the main effect ...

Despite some great help on here I'm not 100% sure about calculating 95 CIs for median difference. This is my procedure at the moment. I've got a repeated measures design, so behaviour of animals in ...

I'd like to compare two ordinal logistic regression models using SPSS (criterion: highest Level of qualification achieved, predictors: sex, Age, adverse childhood experiences either as grand sum score ...

I have 8 variables for which I have to examine whether they have a normal distribution or not. There are 270 observations for each variable. I've run a normality test on SPSS for each variable and all ...

I'm trying to perform a PCA Extraction + Varimax Rotation in MATLAB and obtain the same results as in SPSS. My data is the following matrix A: ...

I have a question about a data analysis that I am running. I am analyzing the results of a survey in which (expectedly) there exists far fewer people in one group than in another. This survey is an ...

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