0
votes
0answers
12 views

hierarchical logistic regression Block non-significant, interaction significant

I'm using hierarchical logistic regression and having some difficulty. Im trying to predict self-harm vs none based on IVs age, gender, alcohol, educational attainment. They are all yes/no except ...
0
votes
0answers
23 views

assess the interaction of two independent variables, on the dependent one

I have a set of laws/policies that overlap with each other through time (for example one started in 1990 and finished in 2001, and the other started in 1995 and finished in 1999). I want to examine ...
0
votes
0answers
93 views

Please help with basic interpretation of an insignificant interaction. (With significant main and conditional effects)

I have a very basic understanding of statistics, and have done many correlations and regressions or simple t-tests, but never an interaction and it is confusing me a bit. I only need to understand the ...
0
votes
0answers
37 views

What to do with interactions that improve the model fit but are not significant?

I'm using Poisson loglinear regression (from Generalized Linear models, SPSS) to analyze different patient variables that influence LNT-lymph node yield-(poisson distribution). After removing the main ...
5
votes
2answers
53 views

Have population, use inferential statistics? Also, non-normal dependent variable, what to do?

Background: We are looking at parental leave in Iceland. We are particularly interested in whether the economic crisis and the resulting changes in parental leave legislation affected the time taken ...
0
votes
0answers
13 views

How to analyze a variable measured on a Likert scale and its interaction with another variable? [duplicate]

I have to analyze this variable which consists of scores given to 3 items (1-9 scale). This "Likert scale" measures "brand commitment" if thats important. 1) Firstly, should I compute 1 new variable ...
1
vote
1answer
285 views

Interaction/Moderation effect in ANOVA - variable is not one of the factors

I am running an univariate ANOVA in SPSS to test my hypotheses for my 3x2 between subjects design experiment. The factors for the ANOVA are review valence (3 levels) and presence of brand (2 levels). ...
1
vote
1answer
41 views

2x2 ANOVA interactions

I'm doing a masters project where I look for effects of font (fluent, disfluent) on two populations' (control, dyslexic) reading comprehension. SPSS only gives me a significant main effect for ...
0
votes
0answers
73 views

graphing interactions' SD above and below the mean

I am fairly new in using SPSS (I'm a freshman in a university) and would like to further test my interactions. I read the Aiken and West procedure for testing interactions, one that graphs the ...
1
vote
0answers
647 views

What do the tests of model effects and parameter estimates really tell (when an interaction is defined)?

A couple of times in LMM or GEE (with SPSS, though I doubt that matters – and might occur in other analyses as well, but these are the ones with which I have seen it) I have seen something that seems ...
1
vote
0answers
28 views

Need help with proper syntax for SPSS Mixed [closed]

I am having trouble building my model properly, and I was hoping I could get some advice here. I have a 2 (S: P vs. D) x 3 (ET: CA vs. CO vs. AD) between-subjects design. Participants were run in ...
0
votes
0answers
145 views

Probing of 3-way-interaction with one continuous and two categorical variables

I have a model for multiple moderated regression with payment (continuous) as the DV, one continuous predictor (neuroticism), and two binary categorical ...
1
vote
3answers
2k views

Interpret significant interaction but no main effect in repeated measures ANOVA

I have a model in which two groups are measured on one DV at pre- post- and 3 months following an intervention (the control group did not receive the intervention). I have an interaction effect, which ...
2
votes
1answer
287 views

Visualizing an interaction effect of a Logistic Regression Analysis (in SPSS)

What would be the best way to go about visualizing an interaction effect of a Logistic Regression Analysis (preferably using SPSS)? There is a significant interaction between one interval (HDI) and ...
0
votes
1answer
180 views

Two-way ANOVA repeated measures

I would like to know, if you got a significant interaction in a two-way repeated measures ANOVA in SPSS, how can you visualize the interaction (especially using syntax)?
5
votes
1answer
2k views

Interaction in generalized linear model

I have 2 continuous variables as my predictors and the interaction between them, so 3 effects all together (when I center my predictors only the interaction is significant). I am using a binary logit ...
1
vote
0answers
452 views

Effect sizes from LMM

My question is, how to get effect sizes for a linear mixed model? I am using the following model in SPSS: ...
1
vote
0answers
270 views

Interpretation of very small GEE Interactions

I have multiple GEE models predicting learning scores from the interactions of psychophysiological data of subjects, e.g. features of Electroencephalograph (EEG), respiration, etc., in a 2 condition ...
1
vote
1answer
88 views

illustrate interaction without ANOVA, other methods?

I am wondering whether there are acceptable ways to illustrate the presence of an interaction besides using an ANOVA. I can't use an ANOVA because I have unequal sample sizes, and due to the nature ...
-1
votes
1answer
152 views

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 ...
2
votes
1answer
347 views

Measuring the moderating effect in my analysis?

I'm trying to analyze if the volume and sentiment (valence) of tweets has an effect on the sales of a product (in my case movies). The DV is sales with IV NumberOfTweets, Valence, DaysSinceRelease. ...
1
vote
1answer
591 views

How to interpret 3-way interaction with one continuous variable in mixed model

I have problems interpreting the direction of the effects in my model. Can you help me with this? I conducted an experiment which includes between subject factor: group=2 (coded as 0-1) within ...
1
vote
2answers
4k views

Significant interaction between covariate and factor in SPSS GLM

In testing gender difference on the relationship between variable A and B, A is the covariate (or independent variable) B is the dependent variable Gender is the factor As I understand it, if ...
0
votes
2answers
3k views

General linear model with interaction term in SPSS

Following my question here, I will be most grateful for further assistance to clear my confusion. The confusion is because I have read in many places that when you use ANCOVA in GLM (in SPSS), the ...
2
votes
2answers
3k views

Explanation of “covariate” in general linear model in SPSS

I am completing a project for a client using general linear model (GLM command) in SPSS/PASW (Ver. 17) Basically, the project is designed to find out if factors such as gender and age affect the ...