Subjective Workload Assessment Technique (SWAT): A User's Guide

1989 ◽  
Author(s):  
Scott S. Potter ◽  
Jeine R. Bressler
Keyword(s):  
Assessment Technique ◽  
Subjective Workload

Tank Crew Performance: Effects of Speech Intelligibility on Target Acquisition and Subjective Workload Assessment

1989 ◽  
Vol 33 (20) ◽  
pp. 1411-1413 ◽  
Author(s):  
Leslie Whitaker ◽  
Leslie Peters
Keyword(s):  
Speech Intelligibility ◽  
Target Acquisition ◽  
Operational Effectiveness ◽  
Assessment Technique ◽  
Training Facility ◽  
Subjective Workload ◽  
Performance Effects ◽  
Target Performance ◽  
Intercom System

Thirty tank crews were tested in the Ft. Knox COFT tank simulator. The COFT simulator is a gunnery training facility. The crew's task was to shoot specified enemy targets. Each crew consisted of a tank commander and a gunner. The commander told the gunner, via an intercom system, which enemy object was the next target. Performance and subjective workload were measured as a function of the speech intelligibility transmitted by the intercom system. Five levels of intelligibility were tested. The measures of operational effectiveness were the number of targets correctly fired upon and the gunner's latency. Subjective workload was measured using the Subjective Workload Assessment Technique (SWAT). Gunner performance and subjective workload covaried across intelligibility levels. Performance was not significantly affected until intelligibility levels fell to 50%. However, SWAT ratings increased linearly with decreasing intelligibility level.

scholarly journals Analisis Beban Kerja Mental Pada Mekanik Menggunakan Metode SWAT dan Metode QNBM

Jurnal Teknik ◽  
2020 ◽  
Vol 18 (1) ◽  
pp. 17-22
Author(s):  
Yolanda Lapai ◽  
Idham Halid Lahay ◽  
Fentje Abdul Rauf
Keyword(s):  
Mental Workload ◽  
Maximum Capacity ◽  
Assessment Technique ◽  
Subjective Workload ◽  
Illness Category ◽  
Body Map ◽  
The Difference ◽  
Questionnaire Method

Mental workload is the difference between the demands of a task workload with the maximum capacity of a person's mental capability in a motivated state. The purpose of this study was to determine the level of the mental burden of mechanics using the SWAT and QNBM methods. The results of the Subjective Workload Assessment Technique method for heavy service workload showed that the mechanics were 56.6% burdened. Mental workload dimensions for mechanics 1 and 3 are effort load, for mechanic 2 is time load. The category for light service is 11.11%, unburdened in the time load dimension for all mechanics. Nordic Body Map Questionnaire Method was 67%, with illness category included.

scholarly journals PENGKAJIAN TINGKAT BEBAN KERJA MENTAL PILOT PESAWAT TERBANG DALAM MELAKSANAKAN TAHAP FASE TERBANG (PHASE OF FLIGHT)

2017 ◽  
Vol 13 (3) ◽  
pp. 181
Author(s):  
Abadi Dwi Saputra ◽  
Sigit Priyanto ◽  
Imam Muthohar ◽  
Magda Bhinnety
Keyword(s):  
Mental Effort ◽  
Assessment Technique ◽  
Subjective Workload

Abstrak: Peristiwa kecelakaan pesawat terbang dapat terjadi pada tahap pengoperasian pesawat terbang, diawali sejak taxi, tinggal landas (take off), menanjak (climb), penerbangan jelajah (cruise), dan tahap pendaratan yang dimulai dari descent, awal pendaratan (approach) kemudian menyentuh landasan (touch down) sampai pesawat terbang berhenti di apron Bandar udara tujuan pendaratan. Penelitian dilakukan untuk mengetahui seperti apakah perbedaan beban kerja mental seorang pilot pada saat melaksanakan tahapan fase terbang (phase of flights). Pengukuran beban kerja mental dilakukan menggunakan metode Subjective Workload Assessment Technique (SWAT), metode ini menggunakan tiga kombinasi dari tiga dimensi dengan tingkatannya. Dimensi tersebut adalah beban waktu (time), beban usaha mental (effort), dan beban tekanan psikologis (stress). Hasil penelitian menunjukkan secara keseluruhan, tingkatan kepentingan relatif yang paling tinggi adalah dimensi beban usaha waktu (time), maka semua subyek mempunyai kesepakatan dan menganggap bahwa faktor beban waktu (time) merupakan faktor yang paling penting dalam menentukan tingkatan  beban kerja mental pilot, sedangkan untuk kondisi yang paling terbebani atau beban kerja mental pilot akan meningkat (level tertinggi) apabila pilot dihadapkan pada saat pesawat akan melakukan prosedur pendaratan (landing).

Application of the Subjective Workload Assessment Technique to Aviation Test and Evaluation

1992 ◽  
Vol 36 (16) ◽  
pp. 1185-1189
Author(s):  
Steve Hale ◽  
Dino Piccione
Keyword(s):  
Mental Workload ◽  
Time Of Day ◽  
Target Range ◽  
Simulation Studies ◽  
Assessment Technique ◽  
Subjective Workload ◽  
Test And Evaluation ◽  
Airborne Target ◽  
Structured Test ◽  
Operator Workload

A study was performed to assess pilot workload associated with the employment of an air-to-air weapon system integrated onto an attack helicopter. Mental workload was assessed using the Subjective Workload Assessment Technique (SWAT). Pilots performed simulated engagements against an airborne target under varying conditions of engagement type, time of day, target background, and target range. The results indicated significant differences in SWAT ratings as a function of time of day and engagement type. To a lesser degree, SWAT ratings were also sensitive to changes in target background and range. These results are consistent with laboratory and simulation studies which have shown SWAT to be sensitive to changes in task demand and further demonstrate the utility of SWAT for assessing operator workload in the less structured test and evaluation environment.

An Examination of Projective versus Post-Task Subjective Workload Ratings for Three Psychometric Scaling Techniques

1987 ◽  
Vol 31 (1) ◽  
pp. 77-80 ◽  
Author(s):  
Philip J. Masline ◽  
David W. Biers
Keyword(s):  
Magnitude Estimation ◽  
Rating Scale ◽  
The Other ◽  
Projective Group ◽  
Assessment Technique ◽  
Subjective Workload ◽  
Verbal Descriptions ◽  
Experimental Group ◽  
Laboratory Task

The validity of three projective workload techniques-magnitude estimation, equal appearing intervals, and the subjective workload assessment technique (SWAT)- was examined using a simple laboratory task. Ratings of workload by subjects who received only written and verbal descriptions of the task (projective group) were compared to ratings from subjects who performed the task (experimental group). Results indicated that, for all rating scale techniques, subjects were able to validly project ratings of workload. Magnitude estimation possessed a higher degree of correspondence between both groups than the other two scales. This finding offers workload researchers involved with system predesign considerations more options in the choice of an appropriate projective workload metric.

The Effect of Intervening Task Performance on Subjective Workload Ratings

1984 ◽  
Vol 28 (11) ◽  
pp. 954-958 ◽  
Author(s):  
F. Thomas Eggemeier ◽  
Brian E. Melville ◽  
Mark S. Crabtree
Keyword(s):  
Task Performance ◽  
Rating Scale ◽  
Short Term Memory ◽  
Memory Task ◽  
Delay Period ◽  
Potential Influence ◽  
Short Term ◽  
Term Memory ◽  
Assessment Technique ◽  
Subjective Workload

Thirty subjects performed a short-term memory task and used the Subjective Workload Assessment Technique (SWAT) to provide workload ratings under one of five conditions. Ratings were provided either immediately following task performance, after a delay period during which no additional tasks were performed, or after a delay period during which an additional set of memory tasks at one of three levels of difficulty was performed. Neither the delay interval nor the requirement to perform a set of intervening tasks significantly affected mean SWAT ratings relative to the immediate rating control condition. Patterns in the data suggested that performance of a set of difficult intervening tasks had the greatest tendency to affect memory task ratings, and indicate that the potential influence of intervening task performance should not be completely discounted in workload rating scale applications.

The Effect of Experience on Subjective Ratings for Aircraft and Simulator Workload during IFR Flight

1987 ◽  
Vol 31 (7) ◽  
pp. 838-841 ◽  
Author(s):  
Carl J. Mallery
Keyword(s):  
Subjective Ratings ◽  
Assessment Technique ◽  
Subjective Workload ◽  
Need To Evaluate ◽  
Cross Country

This research is the result of a need to evaluate the effect of new complex cockpit systems on pilot workload. The goal of this research is to determine if the Pilot Objective/Subjective Workload Assessment Technique (POSWAT) ratings of workload obtained in a simulator are comparable to ratings obtained in an aircraft. In this study twenty experienced instrument rated subject pilots flew the same three simulated instrument cross-country flights. During these flights the pilots gave POSWAT workload ratings at one-minute intervals. The results show, that in general increased experience decreases POSWAT workload ratings for a given taskload.

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