Adults'' Tolerance of Cries: An Experimental Investigation of Acoustic Features

Variations in the aversiveness of a newborn's distress cry were examined using experimental manipulation of 3 acoustic features of the cry (fundamental frequency, intonation, spectral complexity) and of the information given to subjects about the infant's health status. The subjects (N = 164 medical students) were allowed to control the sound pressure level (range: 50 dB [A]-105 dB[A]) of the different cry versions by repeatedly pressing a button (operant titration). For the nonmanipulated (original) cry version, the accepted sound pressure level decreased as fundamental frequency increased at above 610 Hz. This effect was modified by experimental manipulation of spectral complexity as well as intonation. A preference of intonated cries over monotonous cries was most pronounced between 534 and 686 Hz. Significant interactions of the information variable with the intonation and the complexity variables suggest that the listener's reaction to certain physical cry characteristics can be altered substantially by inducing different cognitive sets.     

Young Children’s Development of Scientific Knowledge Through the Combination of Teacher-Guided Play and Child-Guided Play

Research in Science Education - Play-based approaches to science learning allow children to meaningfully draw on their everyday experiences and activities as they explore science concepts in...     

Associations between showering behaviours following physical education,physical activity and fitness in English schoolchildren

We aimed to describe the frequency of showering after physical education (PE) in English high-school pupils. We examined differences in physical activity (PA) and cardiorespiratory fitness according to showering behaviours and examined predictors of showering. We measured PA and cardiorespiratory fitness of n = 3921 pupils (11–16 years, 53.5% males) from eight high schools. Pupils self-reported showering behaviour and parental PA levels. We calculated deprivation and distance travelled to school from their home postcode. Overall, 53% of boys and 68% of girls said they never shower after PE. Pupils who did not shower after PE were less physically active and engaged in fewer team sports. Girls who did not shower also had lower cardiorespiratory fitness than those who did. Showering behaviour varied greatly by school, so we adjusted for clustering at the school level. Pupils were more likely to shower if they were active with their parents [odds ratio (OR) = 1.72; 95% CI: 1.43, 2.07] and less likely to shower if they were from deprived areas (OR = 0.68; 95% CI: 0.52, 0.88). Showering after PE is relatively rare in English schoolchildren, particularly girls. While we cannot infer causality regarding the relationships found here, the low rates of showering and the lower PA and cardiorespiratory fitness (in girls) observed in schoolchildren who do not shower suggest research is needed to determine whether showering is a barrier to being physically active during PE.     

Task-specific kinetic finger tremor affects the performance of carrom players

We aimed to determine the effect of task-specific kinetic finger tremor, as indexed by surface electromyography (EMG), on the accuracy of a carrom stroke. Surface EMG of extensor digitorum communis muscle of the playing arm was recorded during rest, isometric contraction and stroke execution in 17 male carrom players with clinically observed finger tremor and 18 skill- and age-matched controls. Log-transformed power spectral densities (LogPSDs) of surface EMG activity (signifying tremor severity) at a 1-s pre-execution period correlated with angular error of the stroke. LogPSDs in 4–10 Hz range were higher in players with tremor than controls during pre-execution (P < 0.001), but not during the resting state (P = 0.067). Pre-execution tremor amplitude correlated with angular deviation (r = 0.45, P = 0.007). For the first time, we document a task-specific kinetic finger tremor in carrom players. This finger tremor during the immediate pre-execution phase appears to be a significant determinant of stroke accuracy.     

EMOTIONAL AND BEHAVIORAL PROFILE ASSESSMENT USING THE BASC‐2 WITH KOREAN MIDDLE SCHOOL STUDENTS

Korean middle school students are experiencing high rates of behavioral and emotional problems, suggesting a need for comprehensive screening instruments with strong psychometric properties in school settings. The present study investigated the utility of the Behavior Assessment System for Children‐2 Self‐Report of Personality, Adolescent Form (BASC‐2 SRP‐A) to assess clinical problems and adaptive strengths among Korean middle school students. For this revalidation study of the BASC‐2, we first translated the BASC‐2 SRP‐A into Korean (K‐BASC‐2 SRP‐A). Then, using a total of 458 Korean middle school students aged 12 to 15 years, we examined the factor structure and reliability of the clinical, adaptive, and composite scale scores of the K‐BASC‐2 SRP‐A. We also used a separate sample of 45 middle school students to examine the convergent validity of a subset of the K‐BASC‐2 SRP‐A scales targeting the common problem areas of anxiety, depression, and inattention. Based on the current results, we found strong psychometric properties of the K‐BASC‐2 SRP‐A for use among adolescents in Korea, including a well‐fitting factor structure consistent with the originally proposed model, adequate reliability estimates, and validity coefficients falling in the acceptable range. The K‐BASC‐2 SRP‐A can offer the Korean school mental health field a useful and much‐needed multidimensional screening measure for middle school youths.     

Criminal Justice Professionals’ Knowledge of Institutional Review Boards (IRBs) and Compliance with IRB Protocol

Institutional Review Boards (IRBs) perform an essential function in the protection of human participants. A survey was conducted on Academy of Criminal Justice Sciences members to determine their perceptions of IRBs as well as their knowledge of IRB principles and the extent to which they follow IRB protocol. Size of the researcher’s institution, number of research articles, number of years in active research, and number of external grants were also studied in relation to knowledge of IRB guidelines and number of IRB protocol infractions. Findings include significant correlations between involvement in research and engaging in research activities that are against IRB rules.