This research explores students' homework engagement across three dimensions: (a) cognitive, (b) emotional, and (c) behavioral activities, specifically contrasting private and public secondary schools in Addis Ababa. A qualitative research methodology was utilized, with reliability and validity assessments carried out through peer review, site…

This study examined the effect of a social-emotional intervention implemented in one St. Petersburg (Russian Federation) institution (called a Baby Home, BH) on the general behavioral development of preterm children (gestational ages of 30-36 weeks) during their first 2 years of life. The intervention consisted of training caregivers and…

Early diagnosis of Autism Spectrum Disorder is considered best practice, increasing access to early intervention. Yet, many children are diagnosed after 3-years. The current study investigated the school age outcomes of children who received an early and later diagnosis of ASD. The cognitive and behavioural outcomes of children diagnosed early (n…

Identification of early signs of Autism Spectrum Disorder (ASD) could lead to earlier diagnosis and intervention. This cross-sectional study used the Parent Observation of Early Markers Scale (POEMS, Feldman et al. in "J Autism Dev Disord" 42:13-12, 2012) to identify early signs of ASD in 69 ASD high-risk (older sibling diagnosed with…

Juveniles who have committed a sexual offense (JSOs) are thought to have abnormal sexual development, as well as increased ASD symptoms. In the current study, sexual development and behavior, as well as stability of ASD-like symptoms were assessed in a sample of 44 male JSOs (mean age 24.7 ± 1.5 years) 8 years after their sexual offence. JSOs…

Recent research suggests that witnessing events of fission (e.g., the splitting of a solid object) impairs human infants', human adults', and non-human primates' object representations. The present studies investigated the reactions of gorillas and orangutans to cohesion violation across different types of fission events implementing a behavioral…

The article presents 30-year bibliometrical results on trends in the scope, internationality, and impact of the "International Journal of Behavioral Development" ("IJBD") from its inception in 1978 to 2007. Bibliometric data were collected using the databases PsycINFO and Social Science Citation Index (SSCI), and the "IJBD" itself. In comparison…

In spite of numerous recent outcome studies of extremely low birth weight (ELBW) infants, no data exist on their development prior to term. In this study we traced and compared the neurobehavioral development of 251 ELBW (less than 1,000 g) and 240 low birth weight (LBW; 1,000 g-2,500 g) preterms born between 1995 and 2004 from 32 to 37 weeks…

Arbitrarily applicable derived relational responding has been argued by relational frame theorists to be a form of operant behavior. The present study examined this idea with 4 female participants, ages 4 to 5 years old, who could not perform a series of problem-solving tasks involving arbitrary more than and less than relations. In a combined…

The early psychomotor development (DQ) of 29 term small-for-gestational-age Brazilian infants was shown to be more dependent on postnatal growth than the DQ of 51 term appropriate-for-gestational-age infants. (Author/RH)

Reports comparisons of behaviors of nine chimpanzee and nine human newborns on a standardized human neonatal assessment scale at the ages of three days and one month. Human infants scored higher than chimpanzee infants on the orientation cluster at both ages, but were lower than chimpanzee infants in motoric maturity. (RJC)

Evolutionary developmental psychology is a discipline that has the potential to integrate conceptual approaches to the study of behavioral development derived from psychology and biology as well as empirical data from humans and animals. Comparative research with animals, and especially with nonhuman primates, can provide evidence of adaptation in…

Thirty-two preschoolers were observed while they played with realistic play props and nonrealistic play materials in an effort to determine whether realism of play objects was related to overall symbolic object transformation. Boys of all ages and girls under age five demonstrated greater symbolic activity with realistic play props. (SH)

The intellectual development and behavior of U.S. citizen infants with undocumented alien parents were compared with infants of documented alien parents or Hispanic American parents. Demographic and environmental variables were equivalent for both groups. Infants of undocumented parents scored significantly lower on the Bayley mental and…

Neonates born without complications to healthy mothers at 14,000 feet or at 490 feet above sea level were evaluated at 24-36- and 48-60-hours-of-life. In comparison with low-altitude infants, high-altitude infants were significantly lighter, shorter, had a smaller arm circumference, and presented more signs of behavioral immaturity in interactive…