# repeated measures

1. ### Change score an independent variable in mixed model

I have an (ordinal) outcome measured at two time points, baseline and year 1. My colleague is interested in how our exposure variable is associated with the outcome after adjusting for a number of covariates captured at baseline. However, our exposure variable is a percentage change from...
2. ### Determining Effect size for Quade Test

Hello everyone, I did a Quade Test as a non-parametric alternative of the one-factorial repeated measures ANOVA, as my data are not normally distributed. My experimental design includes one factor having 3 levels (t1, t2, t3). All 28 subjects are confronted with all levels (t1, t2, t3) making...
3. ### Working with zoo closed population - observation study - Which test?

Our title: Investigating the anticipatory and aggressive behaviour of a captive group of Sulawesi Crested Macaques (Macaca nigra) during different feeding times and enclosure location. Confused as to what stats test to use as > we have 3 independent variables (explanatory as observation) 1)...
4. ### Correlation and ROC analysis with repeated measures data

Hi all, I have a hypothetical study where participants are taking drug X per standard of care. I have 3 different timepoints (baseline, therapy, post-therapy follow-ups) at which participants have biomarker sampling and echocardiograms performed. Exploratory objective: efficacy; Exploratory...
5. ### general linear model -> repeated measures mean calculation

Dear, We conducted in an experiment four force tests (at slow and fast speed and the dominant side separated from the non-dominant side) in 60 persons which where based on age categorized in three age-groups. My data is as follows We want to establish: the mean % difference between the Dom...
6. ### Multilevel modeling with small N and large number of observations

I'd like some general help figuring out which statistical approaches might be useful for my current situation. I'm working with: A sample of 9 subjects; id A 'time' variable (measured in seconds [0...~15000]) consisting of about 15,000 observations per subject; time A continuous dependent...
7. ### Valid use of repeated measures ANCOVA?

I am running a repeated measures study with four time points. A single group of participants receive the same questionnaire at each time point, which is assessing variable X. I am determining how variable X changes over time. I plan to analyze this in SPSS using a repeated measures ANOVA (with...
8. ### Counterbalanced caffine within subject repeated experiment

Dear all, I was wondering if anyone could give me some pointers about how to analyze my thesis experiment. We had 12 participants, each performed something called "Random dot motion" cognitive tests with coffee and decaffinated coffee (randomly counterbalanced) on two separate days. This test...
9. ### Coding and Visualizing Repeated Measures and Mixed-Effects Models

I am doing a study analyzing trends in changing bird diversity over the past 40 years. Surveys have been taken at 20 locations each year. The survey locations are the random effect and repeated each year. This is the code and output I used in the lme4 library...
10. ### Mixed model Anova ??

Hi, We are doing a research with 2 different groups (Group A and B). They undergo the SAME intervention (a rehab program) and we let them take a survey before, during and after the intervention. During and after the intervention, we expect group A scores better on the survey than group B...
11. ### mixed repeated measures ANOVA

I have a data set with two groups of participants - Group_A (anxious, not depressed) & Group_B (depressed, not anxious), out of which half of the participants in each group completed task in one of the two conditions (Training_1 & Training_2) at three different times (before, after and 1month...
12. ### Mixed model for time trend in R package lme4

Hello! I would very much appreciate if anyone could help with my model in lme4. I have a dataset with 100 persons, specified by ID. Each of them was assessed at three time points, indicated by Time, for a specific measurement, called Score. I want to look at each person's trajectory over...
13. ### SPSS - repeated measures ANOVA (1 between subjects factor, 3 within subjects facotrs)

Hi! I'm using a windows 10 system and SPSS 23. I'm struggling with the procedure to analyze my data. My design has 4 factors: 1 is a between subject factor (there are two different groups of people that I tested) and the other 3 factors are within subjects (size - 9 levels, pattern - 4 levels...
14. ### blank spaces on SPSS output

Hi, I am running a 2x3 repeated measures ANOVA. My IVs are both categorical variables and my DV is a continuous variable - score (out of 200). Firstly, I am having a problem with the ANOVA output. The main efffect of one variable, the output is coming out with no significance, no F-ratio...
15. ### Question regarding RM ANOVA

Dear readers, I have a question regarding my output from the repeated measures ANOVA. For my paper I have hypothesized that Dutch, masculine voices in men were more attractive than foreign, masculine voices in men for a short-term relationship. My results from the three-way RM ANOVA were...
16. ### Question regarding RM ANOVA

Dear readers, I have question about my Repeated measures output. I wanted to check for my hypothesis (whether Dutch, masculinized voices in men were more attractive then foreign, masculinized voices in men for a short-term relationship) a three-way interaction between...
17. ### Question regarding Repeated measures 3-way ANOVA for thesis

Dear Readers, I am new to this forum and I have a question regarding my output/researchdata. I am currently analyzing my hypothesis with respect to masculinity preference for voices (masculinized voice/feminized voice) and mating strategy (short-term/long-term). My hypotheses is that(a)...
18. ### Within Subjects Analyses Advice

Hi all, New user & first time poster. I'm finalizing my dissertation and am searching for similar examples as my project or some way to justify one of our analyses. (I'm also open to better analysis ideas for possible publication later on if anyone has suggestions). I'll try to keep my...
19. ### CASESTOVARS Command for repeated measures - Long-to-Wide Format

Hey everybody, I have a question for a repeated measurement experiment. We investigate the effect of Attachment Style (IV) on Sexual Interest (DV) with 4 mood conditions (IV/Moderator), repeated 4 times for that. The IV is a questionnaire pack prior to the 4x sessions (Moderator & DV). The...
20. ### Analysing proportional data?

Hi! I'm a masters psychology student needing a little help with a dataset I'm analysing :shakehead Dataset: My data has a within-subjects factor of time (i.e. first session vs last session) and a between-subjects factor of group (training vs control). One of my repeated measures DVs looks...