A pair of bright-eyed twins named Roy and Ray Hope celebrated their sixth birthday in Bloomington, Ind. this week in the noisy, rambunctious fashion of six-year-olds everywhere. Their father, Henry Hope, head of Indiana University's fine arts department, thought they might be "physically precocious," to which Mrs. Hope retorted: "That sounds like a father talking." Roy and Ray seemed disarmingly normal, and that was news. For they had spent the first 18 months of their lives in a "Skinner baby box."
Devised by Harvard Psychologist Burrhus F. Skinner,* the box is a big...
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