Neurobehavioral factors associated with referral for learning problems in a community sample: evidence for an adaptational model for learning disorders

We evaluated community general education (CGE; n = 178), community special education (CSE; n = 30) and hospital-referred (HR, n = 145) children (ages 7-6 to 11-11) prospectively over a 2-year period. During this period, 17 CGE children were referred for evaluation (community referred; CR). Prior to referral, CR children performed more poorly than community-nonreferred (CNR) children on cognitive ability, academic achievement, attention problems, and information processing. CR group performance was equivalent to that of CSE and HR groups, but HR children showed poorer academic achievement. Referred children performed more poorly on all measures than nonreferred, whether they met formal diagnostic criteria for a learning disorder or not. Learning disorders may be better conceptualized as a context-dependent problem of functional adaptation than as a disability analogous to physical disabilities, raising questions about the validity of using psychometric test scores as the criterion for identification.     

Does the presentation style of questions inserted into text influence understanding and retention of science concepts?

The purpose of this research was to determine the relative effects of the presentation style of questions inserted into text materials for students in university introductory biology. The sample was randomly assigned to seven treatment groups of approximately equal size and read a 2,354-word passage on bacterial adaptations taken from a popular university general biology textbook. Experimental treatment groups read the same passage with (1) questions placed at the beginning of selected paragraphs and with the questions presented with (2) underlining, (3) in uppercase, (4) set above the paragraph, (5) underlined and set above, and (6) set above in uppercase respectively. The criterion variable was a 20-item multiple-choice exam with five possible answers per question given once to all students immediately after they read the passage and again exactly four weeks later. Presentation strategy groups were contrasted against the reading without questions groups. Four of the six groups reading with questions at the beginning of the paragraph scored significantly higher on the test given immediately after the reading than the group reading without questions. There were no significant differences between any of the group scores for the test given four weeks after reading. Other differences in results between these strategies and implications for text writers are discussed.     

Parental coping with children's negative emotions: relations with children's emotional and social responding

This study examined the relation between parents' reactions to children's negative emotions and social competence. Additionally, the role of parental emotional distress in children's emotional socialization was examined. The emotional reactions of 57 preschoolers (33 girls, 24 boys; M age = 59.2 months) were observed during their free-play interactions. Parents (mostly mothers) completed questionnaires about their reactions to children's negative emotions. An index of children's social competence was obtained from teachers. Results indicated that the relation between harsh parental coping strategies and children's emotional responding was moderated by parental distress. In addition, the relation of the interaction of parental coping and distress to children's social competence was mediated by children's level of emotional intensity. It was concluded that distressed parents who use harsh coping strategies in response to children's negative emotions have children who express emotion in relatively intense ways. In turn, these children find it relatively difficult to behave in a socially competent manner.     

Book reviews

The Light That Shines: Chapel Hill, 1912–1916. Robert B. House. (Chapel Hill: University of North Carolina Press, 1964. Pp. 216. $5.00.)

Psychology of Adolescence for Teachers. Glenn Myers Blair and R. Stewart Jones. (New York: Macmillan, 1964. Pp. 118. $1.50, paper.)

Psychology of the Child in the Classroom. Don C. Charles. (New York: Macmillan, 1964. Pp. 86. $1.25, paper.)

Reading Instruction for Today's Children. Nila Banton Smith. (Engle‐wood Cliffs, New Jersey: Prentice‐Hall, 1963. Pp. 594. $7.50.)

Religion and the Schools, The Great Controversy. Paul Blanchard. (Boston: Beacon Press, 1963. Pp. 265. $4.95.)

School Business Administration in the Smaller Community. Fredrick W. Hill and James W. Colmey. (Minneapolis: T. S. Denison and Company, 1964. Pp. 324. $7.95.)

Sociology of Childhood. Oscar W. Ritchie and Marvin R. Koller. (New York: Appleton‐Century‐Crofts, 1964. Pp. 333. $5.00.)

The Teaching of Mathematics. Roy Dubisch. (New York: John Wiley and Sons, 1963. Pp. 124. $2.95, paper.)

Vignettes on the Theory and Practice of School Administration. Finis E. Engleman, Shirley Cooper, and William J. Ellena. (New York: The Macmillan Company, 1963. Pp. 237. $4.80.)     

No time to think: policy,pedagogy and professional learning

In this study, we seek to illuminate the effects of the global policy convergence in education through a close study of its enactment within an Australian Teacher Education course. Building on an examination of the changing priorities of a cohort of pre-service teachers over a short space of time, we argue that the enactment of New Public Management approaches to the governance of teaching in Australia is having adverse effects on the professional learning of new teachers, defeating the policy goals. Previous studies have investigated the affective impact of current global policy formations on teachers. Building on that work, this study considers the impacts that the teacher policy emphasis on ‘performance’ has had on professional learning processes, which are understood with reference to Kolb’s Experiential Learning Theory. The study is undertaken using an interpretative phenomenographic approach and informed by the related methods of discursive psychology, which positions discourse as a discursive practice to achieve specific goals in specific contexts.     

Frequency sweep rate dependence on the dielectrophoretic response of polystyrene beads and red blood cells

Alternating current (AC) dielectrophoresis (DEP) experiments for biological particles in microdevices are typically done at a fixed frequency. Reconstructing the DEP response curve from static frequency experiments is laborious, but essential to ascertain differences in dielectric properties of biological particles. Our lab explored the concept of sweeping the frequency as a function of time to rapidly determine the DEP response curve from fewer experiments. For the purpose of determining an ideal sweep rate, homogeneous 6.08 μm polystyrene (PS) beads were used as a model system. Translatability of the sweep rate approach to ∼7 μm red blood cells (RBC) was then verified. An Au/Ti quadrapole electrode microfluidic device was used to separately subject particles and cells to 10Vpp AC electric fields at frequencies ranging from 0.010 to 2.0 MHz over sweep rates from 0.00080 to 0.17 MHz/s. PS beads exhibited negative DEP assembly over the frequencies explored due to Maxwell-Wagner interfacial polarizations. Results demonstrate that frequency sweep rates must be slower than particle polarization timescales to achieve reliable incremental polarizations; sweep rates near 0.00080 MHz/s yielded DEP behaviors very consistent with static frequency DEP responses for both PS beads and RBCs.