|M.Sc Student||Darazi Tamar|
|Subject||Objective and Subjective Indices of Performance Competence|
|Department||Department of Industrial Engineering and Management||Supervisor||Professor Emeritus Daniel Gopher|
Daily experience on a task includes a variety of transient situations that vary in intensity and sign. These form the “Pattern of Experience”. Findings show that the main factors effecting experience evaluation are the intensity trend and final intensity.
Training to perform a psychomotor task can be regarded as a patterned experience. The pattern is revealed in the training schedule and the changing abilities of the performer.
The most common Indices that have been used for the evaluation of experience are subjective. When the evaluated experience is performance while training on a psychomotor task, a set of objective indices can also be measured. The relationship between these two types of measures have been the topic of the present investigation.
A space ship game is used as the task in the current research. The spaceship revolves around its’ center. The subject launches missiles at targets around the ship. Pattern of experience is achieved through a graded change of targets’ distances. Subjects were assigned to four groups: increasing, decreasing, constant and random difficulty changes. Performance was tested at the end of training, via the same game, played at the highest difficulty level. Subjective evaluations were measured by two questionnaires.
Findings showed no differences in performance among groups. Performance level was low and mainly affected by task difficulty, though changes in performance due to learning were also recorded. All groups, but the increasing difficulty level group, predicted their performance to improve in the future. Relations between subjective and objective indices showed slight overconfidence in all but the decreasing difficulty level group. Subjects showed a general tendency to over estimate the rate of improvement in their abilities due to learning.