Evidence of alphabetic knowledge in writing: connections to letter and word identification skills in preschool and kindergarten

The writing skills of 286 children (157 female and 129 male) were studied by comparing name writing and letter writing scores from preschool to kindergarten with letter and word reading scores over the same time period. Two rubrics for scoring writing were compared to determine if scores based on multiple components (i.e., letter formation, orientation on the vertical axis, left–right orientation, and correct letter sequencing) would better reflect differences in children’s writing knowledge in preschool and kindergarten than rubrics composed of one component (i.e., letter formation only). While developmental changes in writing scores were found, little additional information was provided by multiple component scoring rubrics compared to the single component rubric. Letter writing scores were more strongly related to letter and word reading scores than name writing scores but neither writing score was predictive of growth. Implications of the findings for intentional/systematic writing instruction in preschool curricula are discussed.     

Why preferences in college admissions may yield a more-able student body

Critics of affirmative action policies contend that the elimination of racial preferences in college admissions would lead to a “more-able” student body. We develop a simple model comprised of three classes of college admissions—merit, race and legacy—to show that it is possible that a change in admissions policy that reduces racial preferences leads to a “less-able” student body. The change in admissions policy may serve only to ensure that more admissions are available for “sale” to wealthy alumni through legacy preferences. In other words, when there are multi-dimensional preferences, reducing or eliminating one dimension of preferences may lead to the unforeseen consequence of producing a “less able” student body.     

鲸鱼之音

1 　　"Leave him alone," I yelled as I walked out of the orphanage gate and saw several of the Spring Park School bullies pushing the deaf kid around.……     

Statistical edutainment: Correlation recreation

Cartoons, songs, poems, and games can be useful ways to engage students in discussion and learning key concepts about correlation.