Tagged Questions

1
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0answers
78 views

Repeated Measures in R, SAS or SPSS: Whale Body Temperature Data

I have a question regarding a repeated measures experiment. I have 5 whales (randomly selected) that I recorded body temperature on. Data was collected via satellite, programmed to transmit records at ...
0
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0answers
26 views

Proper method for time-staggered/repeated measures data?

I have a data set with 300 workers/subjects. There is one dependent variable: a worker's performance, by some metric, during the current week. There are three independent variables (let's call them ...
0
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0answers
36 views

Book on Repeated Measure Analysis

Can anyone recommend a good book or some other reading materials on repeated measure analysis using mixed model.Thanks. Hanna
0
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0answers
77 views

Comparing max/min over several time points against baseline

I have a time-series dataset with repeated measurements (multiple subjects). I have around 100 variables to test. The question is - Is something happen in a time range independently on exact time? For ...
0
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2answers
183 views

One-way repeated measures anova

I tried finding an answer to this question on this and other sites but to no avail - if I am missing something please excuse my inability to locate the answer! Basically I have several dependent ...
1
vote
1answer
167 views

The test procedure of significant differences in count data over time

The data below are from a health testing centre over 8 years so there are different people being tested there each year. All I really want to show is that the amount of females being tested is ...
1
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0answers
79 views

Linear regression of time series with some repeated measures

I have some time series data that I want to perform a linear regression on. Every year a variable number of locations were sampled, I want to find the overall trend in these measurements. However ...
2
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0answers
61 views

Effect of duration of treatment on the outcome at different time points

I am interested in knowing if the duration of treatment has an effect on treatment with two different drugs. We have used two different drugs to treat cerebral ischemia (brain damage) and continued ...
1
vote
2answers
523 views

Non-repeated measures ANOVA of time series with different subjects per treatment in R?

I have the following experimental layout: five different treatments - harvesting rates, ranging from 0 to 1, indicating proportion of branches per plant harvested 75 plants, randomly assigned plants ...
9
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2answers
193 views

What model for a challenging data set? (hundreds of time series with a lot of nesting)

I have quite a complicated data set to analyze, and I cant find a good solution for it. Here is the thing: 1. the raw data is essentially insect song recordings. Each song is made of several ...
1
vote
2answers
136 views

Which statistical method should be used in the study of stability of an enzyme?

I did a study monitoring the stability of an enzyme exposed to different conditions over time. Each day for 30 days, an aliquot was taken from each storage sample and analyzed in duplicate. I wanted ...
2
votes
0answers
124 views

Is it allowed to incorporate static covariates in Mixed effects models with time series data?

I was recently told that it is not allowed to include static covariates in mixed effect models. I can believe that this could be true, however, when I have time series data, and season is a grouping ...
2
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0answers
95 views

How to know whether the six spatial features values (in 3-time period) significantly differ from each other?

I am currently bothered on how to statistically analyze my simple data as shown below. ...
2
votes
1answer
141 views

Statistics for multi-test replicated correlation analysis

I'm analyzing pairwise correlations of time series between two different types of microarrays done for several samples as biological replicates. So, I have M1 number of variables on type 1 array, M2 ...
7
votes
2answers
811 views

Longitudinal data: time series, repeated measures, or something else?

In plain English: I have a multiple regression or ANOVA model but the response variable for each individual is a curvilinear function of time. How can I tell which of the right-hand-side variables ...