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Gallagher, James J. – Journal of Advanced Academics, 2014
The author responds to the article by Warne, Godwin, and Smith (2013) on the question of whether there are more gifted people than would be expected in a Gaussian normal distribution. He asserts that the answer to this question is yes, based on (a) data that he and his colleagues have collected, (b) data that are already available and quoted by…
Descriptors: Gifted, Intelligence Quotient, Statistical Distributions, Intelligence Tests
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Liu, Haiyan; Zhang, Zhiyong; Grimm, Kevin J. – Grantee Submission, 2016
Growth curve modeling provides a general framework for analyzing longitudinal data from social, behavioral, and educational sciences. Bayesian methods have been used to estimate growth curve models, in which priors need to be specified for unknown parameters. For the covariance parameter matrix, the inverse Wishart prior is most commonly used due…
Descriptors: Bayesian Statistics, Computation, Statistical Analysis, Growth Models
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Ederer, Peer; Nedelkoska, Ljubica; Patt, Alexander; Castellazzi, Silvia – International Journal of Lifelong Education, 2015
We estimate the market value that employers assign to the complex problem solving (CPS) skills of their employees, using individual-level Mincer-style wage regressions. For the purpose of the study, we collected new and unique data using psychometric measures of CPS and an extensive background questionnaire on employees' personal and work history.…
Descriptors: Foreign Countries, Participative Decision Making, Employers, Wages
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Mahapatra, Shamita – Journal of Education and Practice, 2015
A group of 50 skilled readers and a group of 50 less-skilled readers of Grade 5 matched for age and intelligence and selected on the basis of their proficiency in reading comprehension were tested for their competence in word reading and the processes of attention, simultaneous coding, successive coding and planning at three levels, i.e.,…
Descriptors: Foreign Countries, Reading Achievement, Grade 5, Elementary School Students
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Warne, Russell T.; Godwin, Lindsey R.; Smith, Kyle V. – Journal of Advanced Academics, 2013
Among some gifted education researchers, advocates, and practitioners, it is sometimes believed that there is a larger number of gifted people in the general population than would be predicted from a normal distribution (e.g., Gallagher, 2008; N. M. Robinson, Zigler, & Gallagher, 2000; Silverman, 1995, 2009), a belief that we termed the…
Descriptors: Gifted, Hypothesis Testing, Intelligence Quotient, Statistical Distributions
O'Connor, Rollanda E.; Bocian, Kathleen M.; Sanchez, Victoria; Beach, Kristen D. – Grantee Submission, 2014
In this study, we tested the outcomes of access to a Response to Intervention (RtI) model in kindergarten or in first grade on end-of-Grade-2 reading achievement and placement in special education. Across five schools, 214 students who began having access to Tier 2 intervention in kindergarten or first grade were compared in Grades 1 and 2 with…
Descriptors: Response to Intervention, Kindergarten, Young Children, Models