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Full-Text Articles in Social and Behavioral Sciences
Psychophysically Derived Work Frequencies Associated With Roof Shingling Operations Involving Change In Grade, Sang Dae Choi
Psychophysically Derived Work Frequencies Associated With Roof Shingling Operations Involving Change In Grade, Sang Dae Choi
Dissertations
The objective of this study was to investigate the effect of roof slope on psychophysical roof shingling frequency. Twelve healthy males (21-30 years old) were used as participants. Experiment one was designed to determine Maximum Acceptable Roof Shingling Frequency (MARSF) for a workday period using psychophysical methodology. Results indicate that 198 shingles/hr is an acceptable roof shingling frequency for a workday. Furthermore, 2 hours is an acceptable testing period (equivalent to the workday). Postural sway and physiological variables support these findings. Experiment two was designed to study the effect of slope (18°, 26°, and 34°) on MARSF. Experiment two indicates …
Using Protocol Analysis To Help Determine The Behavioral Function Of Conducting Safety Observations, Alicia M. Alvero
Using Protocol Analysis To Help Determine The Behavioral Function Of Conducting Safety Observations, Alicia M. Alvero
Dissertations
Recent research endeavors have demonstrated the existence of an observer effect . In other words, conducting safety observations increases the safetyperformance of the observer, and may result in safety-related verbalizations. The purpose of this study was to help determine whether observers make self-verbalizations regarding their safety performance and whether these reports are functionally related to safety performance. In order to answer these questions two experiments were conducted using both protocol analysis and the silent dog method. Protocol analysis is used by cognitive scientists to analyze thethoughts of a person as they perform a task, and the silent dog method allows …