Despite its apparent distance from the core topics of economics, economists have been attracted to, and deeply engaged in, research about teen fertility for more than a quarter century. Research has focused on two broad, interrelated issues: the socio-economic consequences of a teen birth and the socio-economic causes of a teen birth. In researching these issues, economists have drawn on and ex...

Younger drivers (18-21 years) are over-involved in crashes. Research suggests that one of the reasons for this over-involvement is their failure to scan areas of the roadway for information about potential risks in situations that are hazardous, but not obviously so. The primary objective of the present study is to develop and evaluate a training program that addresses this failure. It was hypo...

OBJECTIVES Offspring of older men have impaired cognitive ability as children, but it is unclear if this impairment persists into adulthood. The main objective of this study was to explore the association between paternal age at offspring birth and general cognitive ability as young adults. DESIGN Population-based cross-sectional study with prospectively collected data on obstetric factors an...

The purpose of this study was to assess the lifting performance of boys (N = 12; age 11.3 +/- 0.8 yr), teens (N = 13; age 13.6 +/- 0.6 yr), and men (N = 17; age 21.4 +/- 2.1 yr) to various rest interval (RI) lengths on the bench press exercise. Each subject performed 3 sets with a 10 repetition maximum load and a 1, 2, and 3 min RI between sets. Significant differences in lifting performance be...

Authors: Dominique La Barrie, Lauren B. Adamson, Roger Bakeman, Katharine Suma Faculty Advisor: Lauren B. Adamson

Evolutionary models of cooperation require proximate mechanisms that sustain prosociality despite inherent costs to individuals. The "warm glow" that often follows prosocial acts could provide one such mechanism; if so, these emotional benefits may be observable very early in development. Consistent with this hypothesis, the present study finds that before the age of two, toddlers exhibit great...

It is by now well established that toddlers use the linguistic context in which a new word-and particularly a new verb-appears to discover aspects of its meaning. But what aspects of the linguistic context are most useful? To begin to investigate this, we ask how 2-year-olds use two sources of linguistic information that are known to be useful to older children and adults in verb guessing tasks...

Special patient populations with schizophrenia have received little attention. These populations include adolescents, the elderly, substance abusers, and patients who are considered treatment-resistant. Interest in these populations is rapidly growing, especially with regard to their treatment with second-generation antipsychotics. This article describes the treatment of special patient populat...

More US teens die from traffic crashes than from any other cause, with speed and rural roads major contributing factors. This study aimed to validate a high-fidelity simulator to explore these risks in an injury-free environment. Twenty-one newly-licensed 16-year-old males completed simulated and on-the-road drives of the same rural roads. Average free speeds on three road segments showed no sy...

T he Individuals With Disabilities Education Act (IDEA, 1990, Public Law 101-476; originally called the Education for All Handicapped Children Act of 1975 [Public Law 94-142]) provides the underpinnings for the delivery of occupational therapy to children with disabilities. Occupational therapy is included in IDEA as an educationaUy related service for children and young adults ages 3 years to ...