Repeated measures data occur when more than one measurement is collected on the same unit (e.g. subject). Use this tag for RM-ANOVA together with [anova] tag.
Questions tagged [repeated-measures]
2741 questions
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How should I analyze repeated-measures individual differences experiments?
I do quasi-experimental individual differences psychology research. I examine how people who differ in a cognitive ability (that I measure) perform on another task that always at least involves within-subject manipulations (and sometimes…
Matt
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Longitudinal comparison of two distributions
I have the test results of a blood test administered to 2500 people four times at six-month intervals. The results primarily consist of two measures of immune response - one in the presence of certain tuberculosis antigens, one in the absence. …
Matt Parker
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Unpaired repeated measures data
I realise this is one of those "Don't start from here" type questions, and I did indeed tell them not to "start from here" but it would be a shame to junk the data.
Basically I have some interval normal data, Likert scale type stuff, from two…
Chris Beeley
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Parametric techniques for n-related samples
The title is quite self-explanatory - I'd like to know if there's any other parametric technique apart from repeated-measures ANOVA, that can be utilized in order to compare several (more than 2) repeated measures?
aL3xa
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How to combine results from non-independent experiments with same null hypothesis (e.g. mutant mice don't have anxiety)
We've tested a cohort of wildtype and mutant mice on many different behavioural tests.
5 different tests, performed on different days ON THE SAME SET OF MICE, assess anxiety.
While bonferonni or some other multiple test correction would "penalise"…
SangerSeb
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Repeated measures over time
It may be easier to show you visually what I am trying to compare:
This is what the table for one of the conditions might look like:
The graph above plots the mean values at each time point just so it can visualised for an audience.
Simply…
user28999
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Can within- and between-subjects data ever differ systematically?
I've recently asked whether it is valid to treat repeated measures data as both within- and between-subject data and compare the analysis of both to see if there are differences. My question was motivated by a particular paper (PDF) about presence…
ThomasH
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How to solve a case of unbalanced repeated measures?
I have animals, that could be virgin or mated (reproductive state is the fixed factor), which I've stimulated sequentially with 4 different doses of an odour (doses are the repeated measures, the same animal was blown with 4 increasing doses of the…
Rom
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Repeated measures ANOVA, with same subjects under 2 treatments
I have a group of 6 animals.
I took the baseline reading (Time 0), put them under Treatment A, then take readings again at Times 2, 4, 6, and 12 hours.
I rest them for 2 weeks.
Then I took a baseline (time 0), put them under Treatment B, then take…
sueyee83
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Stats to evaluate pre,post, and follow up data from a small sample pilot intervention
I completed a pilot trial of 9 participants who all received the intervention and I'm looking at change in behavior over time - using continuous, repeated measures that were given at 3 different time points (pretest, posttest, followup).
I'm…
Katie
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Compare groups with repeated measures presence/absence data
I read about cochran's Q and don't think it is right for what I am trying to do. I created and example of my data.
I have 5 ecosystems, each of which had 3 sampling locations (plots). I wanted to compare the presence of floodwater between each…
Douglas Putt
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in RMANOVA, are the subjects dependent?
I want to perform a RMANOVA, are the subjects that the experiments are gonna be performed on, dependent?
noob
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Dealing with repeated measurements
I have the feeling that this is a very basic question, but I have never had any formal schooling in statistics and after extensive googling I feel I just can't come up with the right search terms.
Suppose we have the question: are men faster runners…
Scipio
- 141
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Compound annual growth rate (CAGR) applied to non-financial growth
I’m trying to understand if “compound annual growth rate” is appropriate when applied to non-financial measurements. For example, when that term (and the appropriate calculation) is applied to money growth, it makes sense because the money we…
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Repeated measurment - dependent variable only at one assessment point
I have repeated measures (two assessments) of an independent variable (binomial/two different groups) but dependent variables (continous) measured at only one assessment - what analysis approach would be appropriate?
I checked if there are…
Mr. Mister
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