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| Estimation (Mathematics) | 3 |
| Mathematical Models | 3 |
| Measurement Techniques | 2 |
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Peer reviewedBurns, Edward – Journal of School Psychology, 1983
Presents the bivariate normal probability distribution as a method for estimating the prevalence of giftedness. The bivariate model requires the specification of two cutoff values for two selection variables and information regarding the size of the correlations between variables. The use and interpretation of bivariate estimates is discussed.…
Descriptors: Children, Elementary Secondary Education, Estimation (Mathematics), Gifted
Peer reviewedKranzler, John H.; Jensen, Arthur R. – Intelligence, 1989
A meta-analysis of research on the relationship between inspection time (IT) and IQ was performed. The analysis was designed to determine whether a non-zero relationship between IT and IQ exists, estimate the size of this relationship, and test whether IT is ontogenetically related to "g" (intelligence). (TJH)
Descriptors: Adults, Age Differences, Child Development, Children
Peer reviewedDuncan, Greg J.; Rodgers, Willard – American Sociological Review, 1991
Traditional measures indicating little net change in long-term poverty for children between the late 1960s and the early 1980s mask certain statistical and demographic changes. A rise in female-based households, fewer well-paying jobs for younger workers, and greater dependence on social assistance have offset smaller family sizes and parental…
Descriptors: Children, Economically Disadvantaged, Estimation (Mathematics), Family Income
