Measuring pharmacist time use: a note on the use of fixed-interval work sampling.
Pharmacist time use was studied to examine whether fixed-interval work sampling would provide results comparable to those obtained when random-interval observations were used. The study was conducted over a three-month period using pharmacists in a single community pharmacy as subjects; similar study methods have been used in hospital settings. Four separate measures of pharmacist time use were designated: tasks, duties, competencies and productivity. In every case the fixed-interval method gave an estimate that was not significantly different from the random-interval procedure (alpha greater than 0.05, difference of proportions test). The findings suggest that pharmacist work patterns are not sufficiently cyclical to introduce a bias in work sampling by fixed intervals. Fixed-interval work sampling yields results comparable to those using the standard work sampling methods that rely upon random time periods between observations.
D003157:Community Pharmacy Services; D010595:Pharmacists; D012107:Research Design; D013647:Task Performance and Analysis; D013997:Time Factors; D013996:Time and Motion Studies