The effect of practice on various elements used in screwdriver work

Abstract

A detailed analysis was made of the operation of driving a 5/16-inch screw into a metal bar in an industrial situation. Five male operators performed 200 operations per day for a period of 5 days. The practice effect was greatest on the times required for left and right hand positioning of screwdriver, the last 1/8 inch of driving the screw, and carrying the screwdriver to the screw. (PsycInfo Database Record (c) 2025 APA, all rights reserved)