Effects of Raising the Drinking Age to 21 Years in New York State on Self-Reported Consumption by College Students1

New York State raised its minimum drinking age from 19 to 21 years on December 1, 1985. To examine the effects of this change, data were collected from three college samples: 9.5 months before the law changed, 2.5 months postchange, and 14.5 months postchange. In each sample, students in three age groups were surveyed about their weekly consumption and the location of their drinking: illegal group (age ≤ 18 years), target group (19-20 year olds), and legals (age ≥ 21 years). It was hypothesized that postchange samples in the illegal and target groups would exhibit greater abstention rates, reduced drinks/week and drinking days/week, and a shift in drinking locations. It was found that target subjects exhibited decreased drinking days/week but there were no changes in abstention rates or drinks/week. Consistent with prediction, illegal and target samples evidenced a postchange shift in the drinking venue from licensed to unlicensed locations. Also, illegal subjects reported doing more drinking in automobiles after the law change than before. The findings suggest that the law change had a minimal impact on the quantity of alcohol consumed by underaged student drinkers but a dramatic effect on where they consume alcohol.     

Understanding the Relationships Among Attitudes, Group Norms, and Behavior Using Behavioral Commitment: A Structural Equation Analysis of Marijuana Use

This research examines the relative importance of attitudes and group norms in determining frequency of marijuana use. In this examination, we employ a neglected concept in attitude/behavior research—behavioral commitment. We suggest that the role of attitudes and group norms will vary, in part, depending upon one's level of commitment to the behavior. Specifically, we assert that norms will increase in importance over attitudes as behavioral commitment increases. To test this hypothesis, we utilize covariance structure analysis with a nationally representative sample of high school seniors defined in terms of their commitment to marijuana use. Multiple group comparisons also are performed to assess the comparability of measurement properties and structural estimates. Results are supportive of the hypothesis. The findings are discussed in terms of previous attitude/behavior research and drug abuse prevention programs.     

A randomized trial comparing the effects of self-help materials and proactive telephone counseling on teen smoking cessation.

We conducted a 2-arm randomized trial to test the efficacy of self-help materials with or without proactive telephone counseling to increase cessation among teen smokers. Teen smokers (N = 402) recruited from 11 shopping malls and 1 amusement park in the southeastern United States were randomized to 1 of 2 groups: written self-help material plus video; or written self-help material, video, and telephone counseling. Cessation rates based on 7-day point-prevalent abstinence for the self-help and counseling arms were 11% and 16%, respectively (p = .25), at 4 months postbaseline and 19% and 21%, respectively (p = .80), at 8 months postbaseline. Sustained abstinence, reflecting 7-day abstinence at both time points, in the self-help and counseling arms was 7% and 9% (p = .59). Results suggest that minimal self-help cessation approaches that target youth have comparable success to that shown among adult smokers. However, refinements in telephone-counseling approaches may be needed to achieve the success observed in adult populations.     

Using a taped intervention to improve kindergarten students' number identification

A multiple baseline design across students was used to evaluate the effects of a taped numbers (TN) intervention on the number‐identification accuracy of 4 kindergarten students. During TN, students attempted to name the numbers 0 through 9 on randomized lists before each number was provided via a tape player 2 s later. All 4 students showed immediate increases and reached 100% in number‐identification accuracy. One student reached 100% accuracy after TN was supplemented with performance feedback, reinforcement, and overcorrection.     

Visual landmarks facilitate rodent spatial navigation in virtual reality environments

Because many different sensory modalities contribute to spatial learning in rodents, it has been difficult to determine whether spatial navigation can be guided solely by visual cues. Rodents moving within physical environments with visual cues engage a variety of nonvisual sensory systems that cannot be easily inhibited without lesioning brain areas. Virtual reality offers a unique approach to ask whether visual landmark cues alone are sufficient to improve performance in a spatial task. We found that mice could learn to navigate between two water reward locations along a virtual bidirectional linear track using a spherical treadmill. Mice exposed to a virtual environment with vivid visual cues rendered on a single monitor increased their performance over a 3-d training regimen. Training significantly increased the percentage of time avatars controlled by the mice spent near reward locations in probe trials without water rewards. Neither improvement during training or spatial learning for reward locations occurred with mice operating a virtual environment without vivid landmarks or with mice deprived of all visual feedback. Mice operating the vivid environment developed stereotyped avatar turning behaviors when alternating between reward zones that were positively correlated with their performance on the probe trial. These results suggest that mice are able to learn to navigate to specific locations using only visual cues presented within a virtual environment rendered on a single computer monitor.     

Effects of Parental Acceptance-Rejection on Children’s Internalizing and Externalizing Behaviors: A Longitudinal,Multicultural Study

Journal of Child and Family Studies - Grounded in Interpersonal Acceptance-Rejection Theory, this study assessed children’s (N?=?1315) perceptions of maternal and paternal...     

The Development of Graphophonological-Semantic Cognitive Flexibility and Its Contribution to Reading Comprehension in Beginning Readers

Reading-specific and general color-shape cognitive flexibility were assessed in 68 first and second graders to examine: 1) the development of graphophonological-semantic cognitive flexibility (the ability to process concurrently phonological and semantic aspects of print) in comparison to color-shape cognitive flexibility, 2) the contribution of reading experience to graphophonological-semantic flexibility, and 3) the unique contribution of graphophonological-semantic flexibility to reading comprehension. Second graders scored significantly higher than first graders on both cognitive flexibility tasks; the general flexibility task was easier for all children than the graphophonological-semantic flexibility task; reading experience contributed uniquely to children's graphophonological-semantic flexibility; and graphophonological-semantic flexibility contributed significant, unique variance to children's reading comprehension, consistent with Cartwright's (2002 Cartwright , K. B. ( 2002 ). Cognitive development and reading: The relation of reading-specific multiple classification skill to reading comprehension in elementary school children . Journal of Educational Psychology , 94 , 56 – 63 .[Crossref], [Web of Science ®] , [Google Scholar]) work with second- to fourth-grade students and adults (2007 Cartwright , K. B. ( 2007 ). The contribution of graphophonological-semantic flexibility to reading comprehension in college students: Implications for a less simple view of reading . Journal of Literacy Research , 39 , 173 – 193 .[Crossref], [Web of Science ®] , [Google Scholar]).