The screening efficiency of 2 methods to convert Child Behavior Checklist (CBCL) assessment data into Diagnostic and Statistical Manual of Mental Disorders (4th ed. [DSM-IV]; American Psychiatric Association, 1994) diagnoses was compared. The Machine-Aided Diagnosis (MAD) method converts CBCL input data directly into DSM-IV symptom criteria. The…

The results of the clinical versus statistical prediction meta-analysis support the longstanding finding that statistical methods are superior to clinical methods in making predictions. In this reaction, the authors discuss the findings from the perspective of the context of discovery and the context of justification, the client model-building…

Researchers, policy-makers, and practitioners continually attempt to develop and implement strategies that address the onset and continuance of violent behavior in young people. Researchers in multiple disciplines have identified risk factors that predispose young people to later violent offending (e.g., school performance, demographic…

This experiment assesses spatial and nonspatial relational memory in freely moving 9-mo-old and adult (11-13-yr-old) macaque monkeys ("Macaca mulatta"). We tested the use of proximal landmarks, two different objects placed at the center of an open-field arena, as conditional cues allowing monkeys to predict the location of food rewards hidden in…

This study examined family factors reported by parents and their children in relation to children's academic competence. Adolescents and their parents (N=323) reported about the same family characteristics: parental acceptance and involvement in the children's education. Measures related to children's academic competence were: academic competence…

Spurred in part by University of California (UC) President Richard Atkinson's February 2001 proposal to drop the SAT I for UC applicants, more attention is being paid to other tests such as the SAT II and ACT. Proponents of these alternative exams argue that the SAT I is primarily an aptitude test measuring some vague concept of "inherent…

Despite the known benefits of breastfeeding, many women do not breastfeed their infants or stop breastfeeding early. This study examines the effects of prenatal intention and initial breastfeeding experiences on breast-feeding initiation and duration among 1,665 U.S. women completing questionnaires on infant feeding practices. Outcomes included no…

A heterogeneous sample of infants with preterm histories and infants born full term participated in a study of declarative memory and rate of encoding, as measured in an imitation task and an examining task, respectively. Here we report the comparisons of the performances of infants born very preterm (27-34 weeks gestation) and moderately preterm…

The present study was conducted to test predictions derived from the hypothesis that depression may serve the purpose of adaptively facilitating disengagement from obsolete cognitive plans. Groups of students with either low or high depression scores were contrasted using a procedure that featured an initial learning phase, within which…

In this paper, the author looks at some classic problems in mathematics that involve motion in the plane. Many case problems like these are difficult and beyond the mathematical skills of most undergraduates, but computational approaches often require less insight into the subtleties of the problems and can be used to obtain reliable solutions.…

Selections of liquid aldehydes and ketones are proposed for students to determine what property is the best predictor of the color (yellow to red) of their 2,4-dinitrophenylhydrazone derivative. Students may use a computer (spreadsheet or word processor) to analyze results. (Contains 1 table and 3 notes.)

Multiple group analysis and general growth mixture modeling was used to determine whether aggressive-disruptive behavior trajectories during elementary school, and their association with young adulthood antisocial outcomes, vary by gender. Participants were assessed longitudinally beginning at age 6 as part of an evaluation of 2 school-based…

In the delivery of clinical services, outcomes monitoring (i.e., repeated assessments of a patient's response to treatment) can be used to support clinical decision making (i.e., recurrent revisions of outcome expectations on the basis of that response). Outcomes monitoring can be particularly useful in the context of established practice research…

Several hypotheses related to Newman's (e.g., Patterson & Newman, 1993) response modulation hypothesis were examined among adolescents with attention-deficit/hyperactivity disorder (ADHD; n = 18) and normal controls (n = 23). Consistent with predictions, youth with ADHD committed more passive avoidance errors (PAEs) than controls during the latter…

In written French, the acquisition of the nominal plural ("-s") occurs earlier and faster than the acquisition of the verbal plural ("-nt") (Totereau, Thevenin & Fayol, 1997, "Learning to Spell"). The reasons for this difference are not well known. The objective of the present research is to test two alternative hypotheses, which may provide an…