What Percentage of the Variance in the Symptoms of Attention-Deficit/hyperactivity

question 27

Multiple Choice

What percentage of the variance in the symptoms of attention-deficit/hyperactivity disorder seem to be explained by genetic factors?

• A) 5 percent
• B) 25 percent
• C) 50 percent
• D) 90 percent

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Definitions:

Maintenance Rehearsal

A cognitive process involving the repetitive review of information to keep it in short-term memory.

Memory

The mental capacity or faculty of retaining and reviving facts, events, impressions, or previous experiences.

Signal Strength

A measure of the power level of a transmitted signal as received by a radio receiver or similar device.

Treisman

Anne Treisman was a cognitive psychologist renowned for her work in attention, notably the feature integration theory which describes how we perceive objects as wholes even when attention is distributed among the separate features.