The present study explores how suppositions which conflict with accepted beliefs are represented and reasoned about. Two studies test the predictions regarding the nature and developmental changes in children's ability to represent and reason about hypothetical or make-believe suppositions which violate their everyday knowledge and beliefs. In…

The purpose of this research was to ascertain whether the Hmong language and culture were shifting or were being maintained within a generational cross-section of 12 Hmong participants in Merced, California. Data was collected in the form of interviews, questionnaires, Internet research, and library research. The results of the study showed that…

This paper uses the widespread variation across states in the timing of adoption of tougher drunk driving laws that set very low legal blood alcohol limits for drivers under age 21--"zero tolerance" (ZT) laws--to provide new evidence on the causal effect of alcohol use on youth suicide. ZT laws reduced heavy episodic drinking by underage men, with…

This paper examines how school engagement influences the timing of family formation for youth. We pay particular attention to variation across four racial/ethnic groups and by generation status, variation that reflects the diversification of U.S. society through immigration. Using data from the National Education Longitudinal Study (NELS), we…

The present study employs event related potentials (ERPs) to verify the utility of using electrophysiological measures to study developmental questions within the field of language comprehension. Established ERP components (N400 and P600) that reflect semantic and syntactic processing were examined. Fifteen adults and 14 children (ages 8-13)…

Emotional difficulties, and especially depressive symptomatology, constitute a serious and relatively frequent childhood problem which are often overlooked. Teachers' responses to pupils' depression seem to be related to their understanding concerning the causes of this problem. Thus, the aims of the present research are: (a) to estimate the…

This article offers input and advice to students, parents, and professionals--faculty and counselors--in connection with the so-called millennials, young students entering university since year 2000. Students must recognize the change in the academy. They must be prepared for large first-year classes in which everyone enters as an A student.…

Background: Little is known about the characteristics of people with intellectual disabilities (IDs) who misuse substances and how such problems impinge upon their well-being. The aim of this paper is to describe how alcohol and drugs affect the health of people with IDs. Methods: A questionnaire was forwarded to all the community ID teams and…

Childhood injuries lead to increased morbidity and result in significant costs to public insurance programs. People with mental retardation, most of whom are covered by Medicaid, are at high risk for injury, which has implications for community inclusion, a central policy goal. Medicaid data from inpatient, outpatient, and long-term care settings…

Purpose: Speech-language pathologists (SLPs) use phonological awareness assessments in many ways. This study examines the usefulness of these assessments in kindergarten and 2nd grade. Method: Measures of phonological awareness and letter identification were administered in kindergarten, and measures of phonological awareness, phonetic decoding…

Verbal-to-spatial associations in working memory may index a core capacity for abstract information limited in the amount concurrently retained. However, what look like associative, abstract representations could instead reflect verbal and spatial codes held separately and then used in parallel. We investigated this issue in two experiments on…

One of the most controversial issues in foreign language (FL) teaching is the age at which language learning should start. Nowadays it is recognized that in second language contexts maturational constraints make an early start advisable, but there is still disagreement regarding the problem of when to start or the best way to learn in foreign…

During the school years, psychological test norms may be indexed by age or by grade. A number of studies have shown that using age-based norms appears to produce biases associated with grade assignment. Cahan and Cohen [Child Dev. 60 (1989) 1239-1249] showed that the effect of one grade was over twice the effect of 1 year of age for most verbal…

The performance of distant students in a simulation exercise for a Small Business Management (SBM) course was compared with that of internal students and the demographic and psychological variables associated with the performance of each student group were examined. Distant students matched or exceeded the performance of internal students in…

This study examined the stability and coherence of African-American children's social support networks. Participants included a total of 106 3- to 4-year-old children attending Head Start centers located in the southeast. Children completed a social network interview in two consecutive years at the Head Start centers. These interviews tapped…