Dampening of Adrenocortical Responses during Infancy: Normative Changes and Individual Differences

Changes in cortisol and behavioral responses were examined longitudinally in 83 infants (39 girls, 44 boys) tested at their well-baby exams with inoculations at 2, 4, 6, and 15 months (72 infants completed all testing). Another sample of 2-, 4-, and 6-month-olds ( n = 18 per age) received mock exams without inoculations to determine early developmental changes to the exam procedures. Behavioral distress was coded every 30 sec during the exam, a 5-min inoculation period, and a 20-min recovery period. Salivary cortisol was obtained upon arrival at the clinic and 25 min after the beginning of the inoculation period. To the exam-inoculation procedures, cortisol responses were high at 2 months, decreased significantly between 2 and 4 months, remained comparable between 4 and 6 months, and then declined again between 6 and 15 months. Between 6 and 15 months there was also a decrease in pretest cortisol. By 15 months, significant increases in cortisol from pre- to posttest were no longer observed for most infants. To the exam-only procedures, cortisol responses decreased between 2 and 4 months, and by 4 months most infants failed to show pre- to posttest increases in cortisol. Behavioral distress decreased between 2 and 6 months, but increased again at 15 months. While crying and cortisol were modestly correlated during the 2- to 6-month exam-inoculation procedures, at 15 months no significant correlations were obtained. Behavioral and hormonal reactions thus followed different ontogenetic paths and may provide different information about infant functioning. There was some evidence that the emergence of the circadian rhythm in cortisol might be related to the early decrease in cortisol response.     

Distress calling induced by reductions in group size in ducklings reared with conspecifics or imprinting stimuli

Peking ducklings were reared for 1–2 weeks with either 9 or 12 companions, which were either conspecifics or imprinting stimuli (blocks of foam rubber). They were then tested for their tendency to distress call as the number of companions was reduced systematically. Consistent with prior research, ducklings reared with conspecifics modulated their distress calling as a function of both the number of companions with which they were reared and the number of companions with which they were tested. In contrast, ducklings reared with moving imprinting stimuli gave few if any distress calls, regardless of the number of stimuli with which they were reared or tested, as long as at least one imprinting stimulus was present. The difference in responding did not reflect just a lack of attachment to the imprinting stimuli, since when all stimuli were removed these ducklings gave as many distress calls as the ducklings that had all their conspecifics removed. Finally, ducklings reared with stationary imprinting stimuli displayed an erratic pattern of distress calling when the number of test stimuli was manipulated. These latter ducklings appeared to be less strongly imprinted than the ducklings reared with either conspecifics or moving imprinting stimuli. Implications for understanding duckling perception of brood size and thenature of sibling vs. filial imprinting are examined.     

Teaching philosophies guiding sexuality instruction in US colleges and universities

Teaching philosophies are central to the approach of pedagogical strategies but there has been little examination of discipline-specific teaching philosophies. This study addresses a significant gap in the literature by discussing the teaching philosophies of 122 instructors of sexuality courses. Sexuality education is unique compared to most disciplines due to the personal nature of the content, thus being more difficult for students and instructors to distance themselves from the course content. The teaching philosophies in this study conveyed two overarching approaches to sexuality instruction: the instructor’s perspective of the course and the approach of the sexuality instruction. Although teaching philosophies typically inform one’s practice of teaching and course content, this study proposes that sexuality education is intrinsically different than other areas of instruction despite the interdisciplinary backgrounds of college instructors.     

Evidence for unexpected weaknesses in learning in children with attention-deficit/hyperactivity disorder without reading disabilities

This study examined the mechanisms underlying verbal learning in children with and without attention-deficit/hyperactivity disorder (ADHD), none of whom had reading disabilities. Children with ADHD were compared to typically developing children on both process and product scores from the California Verbal Learning Test for Children. The findings indicated that children with ADHD initially learned the same number of words as controls but showed weaknesses recalling the words after delays, suggesting that children with ADHD are less efficient learners. Regardless of ADHD status, boys and girls performed differently. Boys used semantic clustering less frequently and recalled fewer words from the middle region of the list than girls; girls also outperformed boys in terms of overall performance, despite lower verbal IQ scores. These findings show that children with ADHD can exhibit unexpected weaknesses in learning even without a formal learning disability. Gender differences in verbal learning are also illustrated.     

Leveraging assessment to promote kindergarten learners’ independence and self-regulation within play-based classrooms

ABSTRACT

Currently, kindergarten education is shaped by two priorities: (1) the recognition that early learning must maintain a developmental orientation and support socio-personal growth; and (2) a growing emphasis on standards-based curriculum and the use of assessment to support children’s learning. While some researchers have argued these two priorities are counter-related, research demonstrates the potential to embed these goals through play-based pedagogies. The purpose of this paper is to explore how kindergarten teachers leverage assessment practices, particularly Assessment as Learning (AaL), to support children learning within play-based classrooms. Centrally, we argue that a focus on AaL and self-regulation might be the fulcrum that hinges play-pedagogies with standards-based education and assessment mandates, helping to diminish the divide between these two priorities. Data are drawn from 20 kindergarten classrooms via initial interviews, observations and video-elicitation teacher interviews. Findings identify how kindergarten teachers are productively using assessment to promote learner independence within play-based classrooms.     

Contextualization of mathematics: which and whose world?

We frame teachers’ contextualization of mathematics (CoM) as a classroom-based identity resource. We explore CoM in secondary classrooms in the segregated school landscape of the US, focusing specifically on schools that serve primarily low-income Black and Latinx students. We review literature that discusses commonly-cited affordances for CoM according to formative, affective, functional literacy, and critical literacy rationales and problematize those rationales relative to prior research. We analyze 58 lessons from 12 classrooms at 11 schools to reveal patterns in CoM relative to those commonly cited affordances. The formative, affective, and functional literacy rationales were frequently evident. Teachers draw largely on generic human experiences and marketplace contexts, positioning students as consumers or employees. There were few instances of CoM naming racism or inequality, and our analysis further reveals blind spots in these efforts. Our discussion considers the implications of these patterns.