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Age Differentiation and Mental Growth Curves

Poster Session X - Board: X-014
Sunday, May 24, 2009, 4:00 PM - 5:00 PM
Golden Gate Exhibit Hall

Ralph E. Carlson
University of Texas, Pan American

Hilda Medrano
University of Texas, Pan American

Three thousand three hundred and forty (N = 3,340), 1731 females and 1609 males, ages 5 through 12 years old from five Brazilian states were administered two types of drawings (man or woman). There is a difference among age levels (p < .01) and the effect size, eta squared, is .43.

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Gordon Bower