# Factor Structure of Sleep Complaints data set

`SleepProblems.Rd`

This is a fictitious data set containing correlation matrices of five sleep-related variables.

## Usage

`data("SleepProblems")`

## Format

A `list`

with 2 elements.

- data
`list`

. Contains correlation matrices of k=11 studies. Each correlation matrix has the same structure, and contains the variables "sleep quality", "sleep latency", "sleep efficiency", "daytime dysfunction" and "hypersomnia".- n
`numeric`

. Sample size of each study.

## Source

Fictitious data set. Data were simulated using the `simulateData`

function in `lavaan`

.

## Details

This simulated data set can by used to fit a meta-analytic structural equation model using `tssem1`

. It is assumed that
"sleep quality", "sleep latency" and "sleep efficiency" load on the latent factor "insomnia", while "daytime dysfunction" and "hypersomnia" measure the
latent factor "lassitude".