You are about to record the grip strength of a patient using a hand-held dynamometer. Which of the following descriptions does NOT accurately describe typical results when using a hand-held dynamometer?
1. A bell curve is seen when charting multiple recordings from adjustable hand spacings in consecutive order
2. 20 to 25% differences in grip strength may be observed between the dominant and non-dominant hands
3. Discrepancies of more than 25% in a test-retest situation may indicate the patient is not exerting maximal force
4. The typical bell curve will not appear with an individual who does not exert maximal force for each test
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