interaction effect

  1. S

    Main effect vs. Interaction effect in ANOVA

    I think that a researcher is in general more likely to find a significant main effect than a significant interaction effect in ANOVA. Do you agree with me? Why?
  2. Y

    interpretation of regression coefficients in categorical*continuous interaction

    Hello, I have been struggling with the interpretation of the coefficients in my multiple regression model and I hope you can help me with that! Thanks in advance for reading the long explanation that follows and for thinking along! I have 4 predictors in my model: 1 binary categorical...
  3. L

    Multinomial Logistic Regression - Interaction Effect

    Hello there, I would appreciate it very much if someone could help. In my study, participants saw a picture of a man or woman either with or without a cigarette. So I have a 2(Male, Female) x 2(smoker, non-smoker) experimental design. The question is whether participants would choose...
  4. P

    post hoc test for 3 way anova

    Hi, I am doing ANOVA using three fixed independent factors of which one is sex (two levels 'male' and 'female'), temperature (three levels: 1,2,3) and quality (two levels: good and bad) and I want to see the effect of these factors on dependent variable factors like life-span, weight and...
  5. M

    Interaction effects in Fixed Effect Models

    Dear all, I am currently writing my Master thesis and in addition to finding a relationship, I examine whether the relationship between X and Y became stronger over time. I use a firm fixed effect model, and this is my base regression: (1) CFO_TURNOVER = α0+α1INDUSTRY SHOCK+ ΣCONTROL...
  6. M

    Interaction between binary and continuous variable in OLS

    I am trying to examine the association between maternal education and child school test scores using the following equation. TestScore = β0 + β1 EduYrMom+ β2 FemaleChild+ β3 EduYrMom * FemaleChild + εij where TestScores is the test score of the child, EduYrMom is the years of education of...
  7. S

    Regression with interaction (metric variable) in graphic

    Hey, I did a regressionanalysis with the following variables: Predictor = dummy variable, dependent Variable = metric, moderator variable = metric I know wanna show my results in a figure. The interaction should be shown by three regression lines. One for moderator = Mean (0), one for...
  8. S

    Multilevel Analysis with Intercations

    Hello I'd like to do a regression analysis with interactions, my data has two levels (school classes ans pupils). My variables are: Predictor = dummy variable on Level 1, dependent Variable = metric on level 1, moderator variable = metric, Level 2 I used the following command, but I am not...
  9. H

    Interaction effect of group (IV) and questionnaire type (DV) - Possible with MANOVA?

    I already tried google and also the forum search - unfortunately I didn't find any good answer to my question: I want to know whether my two groups differ on two subscales of the same questionnaire. My hypothesis is that group 1 is worse on both subscales, but the difference to group 2 is...
  10. S

    How to analyze a variable measured on a Likert scale and its interaction with another

    0 down vote favorite 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 that combines the 3 statements (they measure the same latent...
  11. S

    Interaction or moderation effect - suitable method for analysis?

    I have run a two-way between groups ANOVA to analyse my data. However, I have one more variable, which is not one of the factors in the ANOVA. I want to see how this variable interacts with one of the factors. I predicted that it will be a moderator. This variable is measured based on scores...
  12. S

    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). I want to see how these factors affect purchase probability. I also gathered data for the...
  13. M

    Indirect effect of income on Survey completition

    HI Guys, I conducting an analysis on competition of a survey: completed surveys vs not completed.This would be my DV. I have two modes of administrating my survey: the old form (paper) and the new one - via Ipad (Isurvey). My findings suggest that clients who completed the survey using IPAD...
  14. S

    3x2 design - data analysis ANOVA/MANOVA? How to add interaction in the model?

    Hello, Discription of experiment I am researching "The effect of review valence and brand commitment on consumer's purchase intention" for my university thesis. I conducted a 3x2(no review/positive review/negative review x brand/no brand) between subjects design experiment.There were total...
  15. J

    is there interaction effect in RCBD with a single observation per cell ?

    The statistical model for a Randomized Complete Block Design (RCBD) with a single observation per cell is: y_{ij}=\mu+\tau_{i}+\beta_{j}+\epsilon_{ij};\quad i=1,\ldots ,a, \quad j=1,\ldots, b, where y_{ij} is a random variable that represents the response obtained on the ith treatment of the...
  16. E

    Interpreting interaction between dummy IV and continuous moderator with log DV

    Interaction between dummy IV and continuous moderator with log DV Hello Community, I urgently need your help to read the results of my regression analysis for my master thesis, which I need to hand in next week. My DV is the natural logarithm of R&D expenditures, IV is a dummy variable...
  17. S

    Graphical Interpretation of an Interaction Effect

    Hello, I have included an interaction term in my regression and was hoping to graphically interpret it as my variables are continuous. I found a helpful do file from Golder's paper 'Understanding Interaction Effects' but I tried to do the graph and Stata didn't accept the graphical commands...
  18. M

    Logistic Regression interaction effect between 2 categorical variables

    Hi all, I am conducting a logistic regression on whether participants 1=have a mammogram before 40 years old and 0=have a mammogram at 40 +. The two major predictors of this DV is having a family history of breast cancer and having symptoms. However after controlling for these two major...
  19. A

    Statistical test for analyzing 2*3 between-subject design's main & interaction effect

    Hello, I am now having trouble analyzing my data since I got stuck on selecting the proper statistical test to use. My data is a 2*3 between-subject design data. The two IVs are one norminal(with values 0 and 1) and one ordinal(with values 0, 1,2), and my dependent variables are interval...
  20. J

    Comparing two means to One

    Hello, I have a study with 3 groups (depression, anxiety, controls) who were given 3 interview conditions (sad memory, happy memory, anxious memory). The DV is a linguistic variable (e.g., number of verbs used). To analyze main effects and interactions (group*memory condition), I have been...