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Hester
Evaluation Systems, Inc.
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Individual Ability Tests Specific factors may be
measured using the following performance tests. Each test may be purchased singly, and includes the equipment, administration instructions and norms. Finger Dexterity
Finger dexterity is defined as the skillful, controlled ability to manipulate small objects through a small space. This ability is most highly related to the DOT-Things category of Manipulating. Assembly work is
the most obvious job that requires this ability. The critical aspects of this factor are the abilities to pick up small objects, transport them through a small space and place them correctly in a specific location.
Wrist-Finger Speed
Wrist-finger speed is the ability to make rapid movements with one's wrists. This factor appears mostly in tasks that require the worker to insert a screw or bolt or position a small object by turning the
wrist. Thus, it is highly related to the DOT/Things category of Manipulation. Like finger dexterity, it is a necessary ability to perform assembly work.
Arm-Hand Steadiness and Aiming
Arm-hand steadiness is the ability to hold one's hand and arm in a specific position for a relatively short period of time. Aiming involves the ability to move one's hand to a precise stationary position. It differs
from arm-hand steadiness in that aiming requires the person to move the hand to a particular position, rather than just holding it stationary. These abilities are highly related to the D.O.T./Things category of Precision
Working.
Manual Dexterity
Manual dexterity is the ability to skillfully, but rapidly, manipulate relatively large objects. It is most related to the D.O.T./Things category of Handling. It can be most clearly seen in the job of
packing. It is different from finger dexterity in that the objects moved are far larger, and a much greater degree of reaching is required. The use of both hands is absolutely required.
Two-Arm Coordination
This factor involves the ability to move both arms in a simultaneous and coordinated manner. The movement involved is that of the whole arm, as opposed to the two-hand coordination factor. Two-arm
coordination is most related to the D.O.T./Things category of Operating-Controlling and Driving-Operating. While it is used in operating a large amount of production equipment, it is most clearly seen in the job of crane
operator.
Two-Hand Coordination
Two-hand coordination is the ability to move both hands in a coordinated manner to accomplish a specific task. It is different from manual dexterity and two-arm coordination in that there is no reaching or
arm movement involved. Two-hand coordination is related to a number of the D.O.T. categories, but most closely to Operating-Controlling and Tending.
Reaction Time
Reaction time is the speed of a simple over learned
movement to an external cue. The reason we say 'over learned' is that the response must be so automatic that no thought is necessary about what action is
necessary once the cue is presented. Reaction time is most related to the two D.O.T. categories of Operating-Controlling and Driving-Operating.
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