DePasquale N, Zarit SH, Mogle J, Moen P, Hammer LB, Almeida DM. Double- and triple-duty caregiving men: an examination of subjective stress and perceived schedule control. J Appl Gerontol. 2018 Apr;37(4):464-92. doi: 10.1177/0733464816641391
Reed (Earnshaw) SJ, Reed JH. The use of statistical quality control charts in monitoring interviewers. Proceedings of the Survey Research Methods Section, American Statistical Association. 1997 Jan;893-8.