We integrated findings from 35 recent, longitudinal studies of the onset of heterosexual intercourse. Correlates of adolescent sexual intercourse onset, whether in early (before age 16) or middle (ages 16-18) adolescence, included living with other than two biological parents, being less monitored by parents, having more advanced physical maturity…

Over the past decade, practitioners and scholars have struggled to explain women's career choices. The current language, including "opting out," "on and off ramping," and "mommy track," is not only inadequate but assumes a deviation from an accepted norm. We challenge the relevance of the paradigm against which women are being judged, namely, the…

Objective: The construct of empathy was examined in 20 boys with gender identity disorder (GID), 20 clinical control boys with externalizing disorders (ECC), 20 community control boys (NCB), and 20 community control girls (NCG). The mean age of the children was 6.86 years (range = 4-8 years). It was hypothesized that boys with GID would show…

Mathematics is often thought of as a purely intellectual and unemotional activity. Recently, researchers have begun to question the validity of this approach, arguing that emotions and cognition are intertwined. The emotions expressed during mathematics work may be linked to mathematics achievement. We used behavioral measures to identify the…

Several meta-analyses have shown that males outperform females in overall spatial ability, while females outperform males in some verbal ability tests, but not in others. The present article measures sex differences in two computerized tests, one thought to reflect verbal reasoning and one thought to reflect dynamic spatial performance. The sample…

This cross-sectional study was conducted with a random sample of 155 K-12 students served in public school settings and established the extent to which students with emotional/behavioral disorders (E/BD) experience academic achievement deficits with attention to age and gender differences. In addition, this study examined particular types of…

Time-use information is preferably obtained from diaries, as this method is considered more reliable than information from questionnaires. Data from the Danish Time Use Survey 2001 thus indicate differences in the level of unpaid work, whereas only minor differences appear for paid work. That is: people reporting many hours of paid work tend to…

To assess the prevalence and motives for illicit use of prescription stimulants and alcohol and other drugs (AODs), associated with these motives, the authors distributed a self-administered Web survey TO a random sample of 9,161 undergraduate college students. Of the study participants, 8.1% reported lifetime and 5.4% reported past-year illicit…

Using survey data collected in fall 2000, the authors analyzed four aspects of "horizontal" variation among Russian university students: field of specialization, cost (paid versus free), intensity (full- versus part-time study), and timing of study (Soviet versus post-Soviet era). For each type of variation, they examined trends over…

Objective: As awareness of the high prevalence of mental health problems among juvenile offenders has grown, researchers and practitioners have recognized the need for reliable and efficient methods of assessing such problems among large numbers of offenders to ensure that limited treatment resources are applied to those with the greatest need.…

This study investigates whether perceptions of maintenance behavior in cross-sex friendships vary as a function of romantic intent, biological sex, and uncertainty. Individuals recalled the maintenance behaviors they had used over the past month in a cross-sex friendship characterized by one of the following situations: mutual romance (i.e., both…

This paper reports on research conducted at the University of Sussex and examines whether female students have a particular preference for coursework, and whether such a preference is a key factor in their current undergraduate success. The performances of 638 students on courses whose assessment modes comprised both coursework and examinations…

Gender differences in the efficacy of nicotine replacement therapies (NRTs) were examined in a meta-analytical review of 90 effect sizes obtained from a sample of 21 double-blind, placebo-controlled randomized studies. Although NRT was more effective for men than placebo at 3-month, 6-month, and 12-month follow-ups, the benefits of NRT for women…

There exists a "contraceptive gap" among young people. That is, while a large majority of young males and females become sexually active, there is a time lapse between the onset of sexual activity and the use of contraceptives. As a result of this lack of sexual responsibility, there are over 1,000,000 teenage pregnancies each year in the American…

Thomas Arnold has been a controversial figure for historians of the English public schools. He has been depicted either as the great reformer of these famous institutions or as an ordinary head master who did not do better than his contemporary colleagues. This article seeks to continue the debate about the assessment of his head master-ship by…