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121.
122.
Peter Reuter 《Gender Issues》2006,23(3):65-79
In “Drug Use,” Peter Reuter, a professor at the University of Maryland School of Public Affairs and Department of Criminology,
examines substance abuse and addiction among welfare and low-income mothers. He describes the changing patterns of drug use
in the general population. Reuter explains that drug use increased rapidly in the late 1970s, declined in the 1980s, and remained
relatively flat in the 1990s. The patterns, however, are driven largely by changes in marijuana use. The pattern of frequent
use of more dangerous drugs, such as cocaine, is somewhat different. The heavy use of cocaine—especially crack cocaine—peaked
during the late 1980s. By the early 1990s, the number of new addicts had fallen dramatically, although not many heavy users
discontinued their use. As a result, the stock of frequent users held constant through much of the 1990s and only recently
began to decline as more users discontinued their use or died. His main data sources are the Arrestee Drug Abuse Monitoring
(ADAM) program, the Drug Abuse Warning Network (DAWN), Monitoring the Future (MTF), and the National Household Survey of Drug
Abuse (NHSDA). 相似文献
123.
Median Estimation Using Double Sampling 总被引:3,自引:0,他引:3
Sarjinder Singh Anwar H. Joarder & D.S. Tracy 《Australian & New Zealand Journal of Statistics》2001,43(1):33-46
This paper proposes a general class of estimators for estimating the median in double sampling. The position estimator, stratification estimator and regression type estimator attain the minimum variance of the general class of estimators. The optimum values of the first-phase and second-phase sample sizes are also obtained for the fixed cost and the fixed variance cases. An empirical study examines the performance of the double sampling strategies for median estimation. Finally, an extension of the methods of Chen & Qin (1993) and Kuk & Mak (1994) is considered for the double sampling strategy. 相似文献
124.
125.
Pamela M. Cole Tracy A. Dennis Kristen E. Smith-Simon Laura H. Cohen 《Social Development》2009,18(2):324-352
Preschool-age children's ability to verbally generate strategies for regulating anger and sadness, and to recognize purported effective strategies for these emotions, were examined in relation to child factors (child age, temperament, and language ability) and maternal emotion socialization (supportiveness and structuring in response to child distress). The relation between strategy understanding and actual self-regulation was also examined. In a sample of 116 boys and girls, 4-year-olds recognized and generated strategies for anger more than 3-year-olds but 3- and 4-year-olds recognized and generated strategies similarly for sadness. Age effects for strategy generation were explained by expressive language skill. Maternal support in response to child distress was related to strategy recognition and generation but in different ways. Maternal structuring was related only to strategy generation for anger. Child strategy understanding of anger and sadness predicted different child behaviors when children had to deal with frustration alone. The findings suggest that emotion regulation strategy understanding can be assessed in young children and that such understanding has implications for self-regulatory behavior. 相似文献
126.
Because it is easy to compute from three common statistics (minimum, maximum, standard deviation) the studentized range is a useful test for non-normality when the original data are unavailable. For samples from symmetric populations, the studentized range allows an assessment of kurtosis with Type I and II error rates similar to those obtained from the moment coefficients. 相似文献
127.
Social Landscapes of the Inter‐Mountain West: A Comparison of ‘Old West’ and ‘New West’ Communities*
Richelle Winkler Donald R. Field A. E. Luloff Richard S. Krannich Tracy Williams 《Rural sociology》2007,72(3):478-501
Abstract Rural communities have experienced dramatic demographic, social, and economic transformations over the past 30 years. Historically characterized by close links between natural resources and social, cultural, and economic structures, few of today's rural communities remain heavily dependent upon traditional extractive industries like ranching, forestry, and mining. New forms of development linked to natural and cultural amenities, including tourism and recreation, have evolved to sustain the link between community and resources. The Inter‐Mountain West region offers an excellent example of this distinction. Many of the region's rural communities have experienced substantial population growth resulting from the in‐migration of a new kind of rural resident. Their arrival, in a process some have associated with the emergence of a “New West,” has transformed rural places. However, amenity‐related social and economic structures have not occurred uniformly across space. This paper uses factor analysis and exploratory spatial data analysis to analyze demographic characteristics related to the “New West” phenomena in Inter‐Mountain West communities and the spatial patterns found in the degree of “New West‐ness” that each community exhibits. 相似文献
128.
129.
Tracy W. Harachi Richard F. Catalano J. David Hawkins 《Child and Adolescent Social Work Journal》1997,14(1):23-39
This article describes the results of a demonstration project which focused on exploring recruitment and retention of ethnic minority families to a parent training program aimed to prevent substance abuse among their children. The Parenting for Drug-Free Children project sought to deliver a curriculum to parents from several ethnic groups in an urban setting. The targeted ethnic communities were African American, Latino, Native American, and Samoan. The project successfully recruited diverse groups of families to participate in a drug prevention program, many of whom had never participated before in a parenting program. The identification of key individuals for recruiting and accessing networks of potential participants proved to be an effective means of recruitment. 相似文献
130.