نتایج جستجو برای: physiological age
تعداد نتایج: 984921 فیلتر نتایج به سال:
Automatic multimodal spatial attention was studied in 12 dyslexic children (SRD), 18 chronological age matched (CA) and 9 reading level matched (RL) normally reading children by measuring reaction times (RTs) to lateralized visual and auditory stimuli in cued detection tasks. The results show a slower time course of focused multimodal attention (FMA) in SRD children than in both CA and RL contr...
In this longitudinal study, we tested whether adolescent maltreatment and out-of-home placement as a response to maltreatment altered developmental patterns of sexual risk behaviors in a nationally representative sample of youth involved in the child welfare system. Participants included adolescents aged 13 to 17 (M = 15.5, SD = 1.49) at baseline (n = 714), followed over 18 months. Computer-ass...
Relationships between sexual abuse and sexual risk, substance use, emotional distress, and conduct problems were examined among 190 runaways. Those who had been abused were significantly more likely than nonabused peers to engage in unprotected sex, have more sexual partners, and use alcohol and drugs, but did not differ in emotional distress. Those abused after age 13 were more often engaged i...
A substantial number of adolescents, including many as young as 11, engage in high-risk sexual behavior. In a 1992 survey of 2,248 urban students in grades 6, 8 and 10, 45% of respondents, including 28% of sixth graders, were sexually active; the majority of sexually experienced students had had two or more partners. Among sexually active respondents, however, the level of condom use at last in...
CONTEXT The age difference between a female and her partner may influence relationship dynamics in ways that put the female at increased risk of unintended pregnancies and sexually transmitted diseases. Very little is known, however, about how romantic involvement progresses to intercourse, particularly among adolescent females with older male partners. METHODS Data from 1,975 female particip...
This paper explores how young people in Malawi conceptualize sex and sexual relations through an analysis of their personal narratives about these phenomena. Eleven focus group discussions were conducted with 114 youth aged 14-19 years. Participants were asked to describe behaviors, attitudes, and motivations to reduce unplanned pregnancies and the spread of HIV/AIDS, with appropriate probes to...
OBJECTIVE To evaluate a worksite based parenting programme-Talking Parents, Healthy Teens-designed to help parents learn to address sexual health with their adolescent children. DESIGN Randomised controlled trial (April 2002-December 2005). SETTING 13 worksites in southern California. PARTICIPANTS 569 parents completed baseline surveys at work, gave permission for confidential surveys to ...
OBJECTIVE To determine the status of serum zinc in pregnant women in different gestational ages and correlation with socio-demographic and anthropometric factors in Iranian women referring to prenatal care public health clinics. MATERIALS AND METHODS We analyzed the zinc concentrations in plasma samples obtained at different gestational ages from 961 women and recorded BMI at the first trimes...
The (hetero)sexual double standard (SDS), prescribing sexual modesty for girls and sexual prowess for boys, negatively affects sexual and mental health. Nevertheless, endorsement and enactment of the SDS is still common. In this study, we respond to recent calls for modernization in the field of sexual double standard research. We describe the development of the "Scale for the Assessment of Sex...
Researchers seeking to understand teen sexual behaviors often turn to age norms, but they are difficult to measure quantitatively. Previous work has usually inferred norms from behavioral patterns or measured group-level norms at the individual level, ignoring multiple reference groups. Capitalizing on the multilevel design of the Add Health survey, we measure teen pregnancy norms perceived by ...
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