Profiles of algebraic competence

The algebraic competence of 72 12-year-old female students was examined to identify profiles of understanding reflecting different algebraic knowledge states. Beginning algebraic competence (mapping abilities: word-to-symbol and vice versa, classifying, and solving equations) was assessed. One week later, the nature of assistance required to map algebraic symbols onto word problems was evaluated. Two weeks later, unassisted algebraic problem-solving tests were completed. Cluster analyses revealed four meaningful, relatively well-ordered, arithmetic/algebraic competence profiles reflecting partial knowledge states associated with the acquisition of algebraic understanding. The findings are discussed in terms of the conceptual changes associated with the acquisition of algebraic competence.     

Leadership as Accountability for Learning: The Effects of School Poverty, Teacher Experience, Previous Achievement, and Principal Preparation Programs on Student Achievement

In the current era of accountability for achievement, school principals play the pivotal role of instructional leader. In a high-stakes testing environment, leadership preparation programs in universities and school districts need to be positively related to academic outcomes. The purpose of this study was to examine the relationship between school leadership preparation programs and student achievement in urban settings. Because leadership is contingent on the setting, school contextual factors and their impact on student achievement framed this study. Regression techniques were employed to construct a conceptual model with predictors of criterion and norm-referenced student achievement scores. Confirming previous research findings, student poverty, teacher experience, and previous achievement were the strongest predictors and accounted for a significant amount of variance in student achievement; however, university and district preparation programs were not significant predictors. Implications for policy, practice, and future research are discussed.     

Universality Without Uniformity: A Culturally Inclusive Approach to Sensitive Responsiveness in Infant Caregiving

Do caregivers in non‐Western communities adapt their behaviors to the needs of infants? This question reflects one of the most long‐standing debates on the universality versus culture‐specificity of caregiver–infant interactions in general and sensitive responsiveness to infants in particular. In this article, an integration of both points of view is presented, based on the theoretical origins of the sensitive responsiveness construct combined with the ethnographic literature on caregivers and infants in different parts of the world. This integration advocates universality without uniformity, and calls for multidisciplinary collaborations to investigate the complexities and nuances of caregiver–infant interactions in different cultures. Salient issues are illustrated with observations of infants (ages 7–31 months) in Mali, the Republic of Congo, and the Philippines.     

Auditory and visual factors related to spelling success

Compared good and poor spellers at the third- and sixth-grade levels on seven tasks that measured visual and auditory discrimination, memory, analysis and synthesis skills. The results indicated that five tasks discriminated between good and poor spellers at the third-grade level: tasks requiring visual discrimination and visual memory of words; auditory discrimination, memory, analysis and synthesis; and auditory-visual integration. Two tasks discriminated between good and poor spellers at the sixth-grade level: tasks requiring auditory discrimination, memory, analysis and synthesis; and auditory-visual integration. Memory for words and sentences did not discriminate between good and poor spellers at either grade level.     

Best Practices for an Interdisciplinary Team-Taught Course

In the interdisciplinary course, Aging to Infancy: A Life Course Retrospective, the Institute of Medicine's recommendations for education were embraced through the role modeling provided by faculty both across and between disciplines. Over the five years since its creation, the course has introduced students to aging in a positive manner, establishing the foundation for higher level courses within each program's curriculum. The course also introduces students to the interdisciplinary healthcare team and reinforces the need for practitioners who value the interdisciplinary approach and expect it in their place of work. These are best practices for an interdisciplinary course.     

The early childhood aggression curve: development of physical aggression in 10- to 50-month-old children

This study examines the prevalence, stability, and development of physical aggression, as reported by mothers and fathers, in a sample of children initially recruited at 12, 24, and 36 months (N=2,253) and in a subsample followed up 1 year later (n=271) in a cross-sequential design. Physical aggression occurred in 12-month-olds, but significantly more often in 24- and 36-month-olds. The rates of physically aggressive behaviors increased in the 2nd year of life, and declined from the 3rd birthday onward. Stabilities were moderate for 12-month-olds and high for 24- and 36-month-olds. At the ages of 24 and 36 months, boys were more aggressive than girls. The results confirm and extend R.E. Tremblay's (2004) hypothesis about the early development of physical aggression.