The data set includes 28 studies on 14 items measuring the Hospital Anxiety and Depression Scale (HADS) Reported by Norton et al. (2013).

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The variables are:

- data
A list of 28 studies of correlation matrices. The variables are 14 items (x1 to x14) measuring HADS.

- n
A vector of sample sizes

- population
A vector of population of the data

- group
A vector of classification into

*patients*vs.*non-patients*based on population

Norton, S., Cosco, T., Doyle, F., Done, J., & Sacker, A. (2013). The Hospital Anxiety and Depression Scale: A meta confirmatory factor analysis. *Journal of Psychosomatic Research*, *74*(1), 74-81.

Jak, S., & Cheung, M. W.-L. (2015). Addressing heterogeneity in meta-analytic structural equation modeling using subgroup
analysis. *Manuscript in preparation*.

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