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Ghisletta, Paolo; McArdle, John J. – Structural Equation Modeling: A Multidisciplinary Journal, 2012
In recent years the use of the latent curve model (LCM) among researchers in social sciences has increased noticeably, probably thanks to contemporary software developments and the availability of specialized literature. Extensions of the LCM, like the the latent change score model (LCSM), have also increased in popularity. At the same time, the R…
Descriptors: Statistical Analysis, Structural Equation Models, Computation, Computer Software
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Brown, Thomas E. – Educational Leadership, 2007
A recent study conducted by the U.S. Centers for Disease Control estimated that approximately 7.8 percent of U.S. children ages 4-17 are currently diagnosed with Attention Deficit Disorder (ADD) or Attention Deficit/Hyperactivity Disorder (ADHD). For decades, most educators, physicians, psychologists, and parents have thought of ADD/ADHD as…
Descriptors: Psychologists, Physicians, Disease Control, Behavior Problems