Task Complexity:

Linda Gottfredson:

"task complexity increases when tasks require more mental manipulation, for example, when the information to be processed is more voluminous, abstract, ambiguous, uncertain, incomplete, novel, or embedded in distracting material, and when the task requires spotting regularities, judging relevance, drawing inferences, integrating information, or otherwise evaluating and mentally transforming information to some end."

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"the job descriptions of managerial, executive, and professional workers themselves suggest that high-IQ, self-trainable individuals are essential: that is, individuals who are better able to “learn much on their own” and from the “typical college format” (WPT 26-30, IQs over 110) and to “gather and synthesize information” and “infer information and conclusions from on-the-job situations” (WPT 28 and above, IQs over 116)."