Does anyone know of studies looking at attrition rates in longitudinal studies?

Hello Caroline

Are these of any help? They are not particularly about focus group studies. The first 7 references of this paper may also be of interest:

Gustavson, K., von Soest, T., Karevold, E., & Røysamb, E. (2012). Attrition and generalizability in longitudinal studies: findings from a 15-year population-based study and a Monte Carlo simulation study. BMC Public Health, 12(1), 1.

https://www.researchgate.net/profile/Kristin_Gustavson/publication/232737149_Attrition_and_generalizability_in_longitudinal_studies_findings_from_a_15-year_population-based_study_and_a_Monte_Carlo_simulation_study/links/54c7391e0cf22d626a362958.pdf

This might be relevant re focus group research:

Sherman, D. W., McSherry, C. B., Parkas, V., Xiang, Y. Y., Calabrese, M., & Gatto, M. (2005). Recruitment and retention in a longitudinal palliative care study. Applied Nursing Research, 18(3), 167-177.

I have the full text if you are unable to access it.

http://www.ncbi.nlm.nih.gov/pubmed/16106335

Deng, Y., Hillygus, D. S., Reiter, J. P., Si, Y., & Zheng, S. (2013). Handling attrition in longitudinal studies: The case for refreshment samples. Statistical Science, 28(2), 238-256.

https://www.researchgate.net/profile/D_Sunshine_Hillygus/publication/237145715_Handling_Attrition_in_Longitudinal_Studies_The_Case_for_Refreshment_Samples/links/00b7d53c73caa93001000000.pdf

Deng, Y., Hillygus, D. S., Reiter, J. P., Si, Y., & Zheng, S. (2013). Handling attrition in longitudinal studies: The case for refreshment samples. Statistical Science, 28(2), 238-256.

https://www.researchgate.net/profile/D_Sunshine_Hillygus/publication/237145715_Handling_Attrition_in_Longitudinal_Studies_The_Case_for_Refreshment_Samples/links/00b7d53c73caa93001000000.pdf

http://www.kcl.ac.uk/sspp/departments/sshm/geront/research/retentionreport.pdf

Very best wishes

Mary

Article Attrition and generalizability in longitudinal studies: Find...

Article Handling Attrition in Longitudinal Studies: The Case for Ref...

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