Socially desirable responding on the web: investigating the candor hypothesis

The investigation presented here explores the hypothesis that participants are less likely to respond in a socially desirable fashion on self-report questionnaires completed on the Web relative to those completed in the laboratory--the candor hypothesis. A battery of social desirability questionnaires (i.e., Balanced Inventory of Desirable Responding [Paulhaus, 1984], Marlowe-Crowne Social Desirability Scale [Crowne & Marlowe, 1964], Eysenck Personality Questionnaire-Revised Lie Scale [Eysenck & Eysenck, 1994]) was administered to 3 groups: 2 groups consisted of undergraduate participants who were randomly assigned to complete the measures either in the laboratory (n = 60) or on the Web (n = 60), and 1 group consisted of self-selected participants who visited our experimental Web page and completed the measures online (n = 284). This design allowed us to assess the role of Web administration while controlling for differences in sample type, an oft-neglected issue in the Web literature. Results do not support the claim that administering self-report measures over the Web results in a decrease in socially desirable responding. Furthermore, these findings highlight the problems associated with confounding sample and medium. Implications for the use of Web as a research tool are discussed.     

Sex differences in the Poggendorff illusion: identifying the locus of the effect

Extensive research has identified individual differences associated with sex in a range of visual task performances, including susceptibility to visual illusions. The aim of this study was to identify the locus of sex differences within the context of the Poggendorf illusion. 79 women and 79 men participated within a mixed factorial design. Analyses indicated that sex differences were only present in the stimulus context with the full inducing element present. This finding replicates recent research and provides qualifying evidence as to the locus of the effect. The findings are discussed within the functional framework of perceptual processes involved in extrapolating 3-dimensional characteristics from 2-dimensional visual stimuli.     

Dissociations in perceptual learning revealed by adult age differences in adaptation to time-compressed speech

When presented with several time-compressed sentences, young adults' performance improves with practice. Such adaptation has not been studied in older adults. To study age-related changes in perceptual learning, the authors tested young and older adults' ability to adapt to degraded speech. First, the authors showed that older adults, when equated for starting accuracy with young adults, adapted at a rate and magnitude comparable to young adults. However, unlike young adults, older adults failed to transfer this learning to a different speech rate and did not show additional benefit when practice exceeded 20 sentences. Listeners did not adapt to speech degraded by noise, indicating that adaptation to time-compressed speech was not attributable to task familiarity. Finally, both young and older adults adapted to spectrally shifted noise-vocoded speech. The authors conclude that initial perceptual learning is comparable in young and older adults but maintenance and transfer of this learning decline with age.     

Divided attention in younger and older adults: effects of strategy and relatedness on memory performance and secondary task costs

Divided attention at encoding leads to a significant decline in memory performance, whereas divided attention during retrieval has relatively little effect; nevertheless, retrieval carries significant secondary task costs, especially for older adults. The authors further investigated the effects of divided attention in younger and older adults by using a cued-recall task and by measuring retrieval accuracy, retrieval latency, and the temporal distribution of attentional costs at encoding and retrieval. An age-related memory deficit was reduced by pair relatedness, whereas strategy instructions benefited both age groups equally. Attentional costs were greater for retrieval than for encoding, especially for older adults. These findings are interpreted in light of notions of an age-related associative deficit (M. Naveh-Benjamin, 2000) and age-related differences in the use of self-initiated activities and environmental support (F. I. M. Craik, 1983, 1986).     

Integrating the criminal justice system into mental health service delivery: the worcester diversion experience

The substantial number of persons with mental illness encountered in many sectors of the criminal justice system has spurred actors from various agencies within that system to take actions aimed at reducing the growth of this population. These actions have included the development of specialty police units, jail diversion programs, and other mechanisms for channeling persons with mental illness out of the criminal justice system and into mental health treatment. The courts, too, have become involved in this effort with the recent development of the "mental health court," the latest of the "specialty" or "problem solving courts." These courts have not been without their critics, however, nor are they the only feasible approach to court-based diversion. This paper identifies and explores a range of options for structuring the relationship between criminal courts and local mental health systems. Beginning with a discussion of the rationale motivating the development of mental health courts, two alternatives to this specialty court model are discussed. One involves judges dealing with defendants having mental illness and substance abuse on a case-by-case basis. The other takes advantages of linkages that may already exist between most courts and the mental health providers who conduct their forensic assessments, expanding the role of these providers to serve as boundary spanners between courts and the components of local mental health systems. Regardless of the model adopted, however, appropriate linkages must exist between the courts and relevant providers. A case study is provided that demonstrates how the status of a locale's linkages can be evaluated and how the information derived from such evaluation can be used to improve the linkages between police, courts, and health and human services agencies.     

Nonequivalence of on-line and paper-and-pencil psychological tests: The case of the prospective memory questionnaire

There is growing evidence that Internet-mediated psychological tests can have satisfactory psychometric properties and can measure the same constructs as traditional versions. However, equivalence cannot be taken for granted. The prospective memory questionnaire (PMQ; Hannon, Adams, Harrington, Fries-Dias, & Gibson, 1995) was used in an on-line study exploring links between drug use and memory (Rodgers et al., 2003). The PMQ has four factor-analytically derived subscales. In a large (N763) sample tested via the Internet, only two factors could be recovered; the other two subscales were essentially meaningless. This demonstration of nonequivalence underlines the importance of on-line test validation. Without examination of its psychometric properties, one cannot be sure that a test administered via the Internet actually measures the intended construct.     

Closing the Solidarity Gap? How Ethnic Diversity Alters Who We Are Willing to Support

Citizens tend to be more solidary with ethnic ingroup members than ethnic outgroup members. As a result, increasing ethnic diversity is often found to impede solidarity. Although this perspective is well established, I present an alternative argument: Under circumstances that foster intergroup contact, increasing diversity promotes, rather than impedes, intergroup solidarity. To test this argument, I combine a survey experiment fielded among Danish students with quasi-random observational data on students' classroom ethnic composition. I find that ethnic-majority adolescents are on average more willing to support ethnic-majority recipients than immigrant and ethnic-minority recipients. Yet, although increasing diversity does not moderate the majority-minority solidarity gap, increasing diversity diminishes and erases the majority-immigrant solidarity gap. As further shown, one explanation is that immigrants in particular face strong stereotypes of being lazy and that ethnic diversity reduces this specific stereotype. These findings suggest that immigration and solidarity need not be incompatible. Under certain circumstances, ethnic diversity at worst leaves intergroup solidarity unaltered and at best improves such solidarity.