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Data reflecting affect, mood, and personality attributes of 23 normal men were compared after two weeks of placebo administration and two weeks of therapeutic serum lithium levels (mean, 0.91 mEq/liter). The study was a placebo-controlled, split-half crossover, double-blind design. Affect and mood were measured by three self-rating instruments, independent(More)
The responses of twenty-three normal male subjects to a standardized dose of 95% ethanol (1.32 ml/kg of body weight) were compared after two weeks of placebo and two weeks of therapeutic serum lithium ion levels (mean 0.91 mEq/liter). The study was a placebo controlled, split-half crossover, double-blind design. Prealcohol and postalcohol responses were(More)
Using time-diary data from a national sample of young school-age children, we examine the correlates of time spent at home on computing for cognitive and other measures of well-being. We observe modest benefits associated with home computing on three tests of cognitive skill, and on a measure of self-esteem. Most young children who spend time at home on(More)
The usual caveat applies. The views expressed herein are those of the author and do not necessarily reflect the views of the National Bureau of Economic Research. ABSTRACT This paper describes a series of school-based randomized trials in over 250 urban schools designed to test the impact of financial incentives on student achievement. In stark contrast to(More)
Behavioral and mood changes were measured for 8 normal male subjects after oral administration of sodium pentobarbital (3 mg/kg body weight). This procedure was repeated on three occasions: firstly a drug-free condition; then a condition following two weeks of maintenance 0.7 to 1.2 MEQ/L lithium carbonate; and then another drug-free condition. Intial(More)
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