The Science of Decision-making: Behaviours Related to Gambling

Abstract

The behaviour analysis of decision-making has studied three realms of behaviour that play a role in gambling: risk taking, behavioural persistence and self-control. Research from our laboratory and others suggests that in all three areas, the manner in which choices are presented to subjects is of central importance. The paper argues that a behavioural perspective may be useful in understanding the factors controlling gambling and compares this perspective with one based on a cognitive orientation.     

Establishing verbal repertoires: Toward the application of general case analysis and programming

A great deal of clinical and experimental work in past decades has focused on establishing functional verbal repertoires that are used across various settings and situations by persons with moderate and severe disabilities. Such work has not always involved a careful analysis and programming approach for structuring training to achieve the desired range of stimulus control relationships. General case analysis and programming procedures, which are based on behavior analytic and Direct Instruction principles and techniques, have proven effective in recent years for teaching a variety of community-based skills to learners with moderate and severe disabilities. This paper outlines the general case process and discusses its application to establish verbal repertoires.

     

Ecology of urban lawns under three common management programs

Turfgrass lawns are a central part of urban and suburban landscapes throughout North America and are often managed using repeated applications of chemical fertilizers and pesticides. These inputs are expensive and may negatively affect ecological processes in lawns. Therefore, we evaluated the influence of three most common lawn care programs on ecological characteristics of turfgrass lawns. Twenty-eight home lawns, separated into 3 groups based on the lawn care program (professional, do-it-yourself [DIY], and no-input), were studied. Data on lawn quality, weed and insect infestation, disease incidence, soil nematode community, soil nitrogen pools, microbial biomass (MBN), and soil organic matter (SOM) were collected. Results indicated that professional lawn care resulted in the highest aesthetic lawn quality mainly due to better weed control, compared to DIY and no-input programs. However, professional and DIY programs negatively affected MBN and SOM pools and enhanced disease (rust) severity. No significant differences in soil nematode population and nematode community indices across the three programs were found, indicating no differences in net ecosystem productivity among the three programs. Overall, soil nematode food web in turfgrass lawns represented a disturbed food web compared to natural grasslands and forest ecosystems, irrespective of the lawn care program used.     

Voting in professional associations: The case of the American sociological association revisited

Who votes in ASA elections? This article examines data on voter turnout from two recent presidential contests of the American Sociological Association in an analysis of the determinants of election participation. Extending the 1981 Ridgeway and Moore study of voting dynamics in the ASA, we hypothesize that intraorganizational networks and particular demongraphic characteristics link ASA members to the discipline in a manner analogous to the way such factors operate in the national electorate. On the basis of data compiled from 1985 and 1986 ASA election returns, we find that network factors are the most salient determinants of voting behavior. We conclude that those organizational ties that effectively link members, however directly or indirectly, to the larger Association are the most predictive of propensity to vote.     

Post-adoption needs of families adopting children with developmental disabilities

The post-adoption service use and needs of 125 families who had adopted children with developmental disabilities were examined using a structured mail questionnaire. Although satisfaction with services used was generally high, many families did not have access to basic family support services such as respite care, life planning and support groups. Income was the only demographic variable which correlated with service need. Middle income families (mean = $30,000 to $34,999) were more likely to need support groups and babysitting for other children than either lower or higher income groups. Of particular note in this study is the relatively high incidence of transracial adoptions. Thirty-one percent of the sample had adopted children of a different race than the family. The implications of the findings and service recommendations are discussed.