The developmental psychometrics of big five self-reports: acquiescence, factor structure, coherence, and differentiation from ages 10 to 20

How do youths' personality reports differ from those of adults? To identify the year-by-year timing of developmental trends from late childhood (age 10) to early adulthood (age 20), the authors examined Big Five self-report data from a large and diverse Internet sample. At younger ages within this range, there were large individual differences in acquiescent responding, and acquiescence variability had pronounced effects on psychometric characteristics. Beyond the effects of acquiescence, self-reports generally became more coherent within domains, and better differentiated across domains, at older ages. Importantly, however, different Big Five domains showed different developmental trends. Extraversion showed especially pronounced age gains in coherence but no gains in differentiation. In contrast, Agreeableness and Conscientiousness showed large age gains in differentiation but only trivial gains in coherence. Neuroticism and Openness showed moderate gains in both coherence and differentiation. Comparisons of items that were relatively easy versus difficult to comprehend indicated that these patterns were not simply due to verbal comprehension. These findings have important implications for the study of personality characteristics and other psychological attributes in childhood and adolescence.     

Challenges To Human Equality

According to liberal egalitarian morality, all human beings are one another's moral equals. Nonhuman animals, by contrast, are not considered to be our moral equals. This essay considers two challenges to the liberal egalitarian view. One is the ``separation problem,' which is the challenge to identify a morally significant intrinsic difference between all human beings and all nonhuman animals. The other is the “equality problem,” which is to explain how all human beings can be morally equal when there are some human beings whose psychological capacities (and, in some cases, their psychological potentials as well) are no higher than those of certain nonhuman animals. The focus throughout is on the ethics of killing but the arguments are of broader relevance. The essay reaches a skeptical conclusion about our ability to meet these challenges.     

Microswitch-based programs for persons with multiple disabilities: an overview of some recent developments

Persons with multiple disabilities are often unable to interact with their environment due to their limited response repertoire. Microswitch programs are designed to help them control environmental events, generally preferred stimulation, through simple (feasible) responses. To make microswitch programs a more widely usable and relevant resource for intervention with these persons, a number of new developments were pursued in recent years. This paper examines three of those developments as specifically addressed in our research activity, namely, (a) assessment of new, nontypical responses and matching microswitches, (b) fostering of multiple responses and exercise of choice, and (c) targeting of habilitative and clinical (therapeutic) objectives. The encouraging outcomes of these developments are reviewed in relation to their potentially wide implications for daily practice and the need of additional developments in the area.     

Cognitive‐Behavioral Tasks Accomplished in a Person‐Centered Relational Framework

The authors propose a person‐centered relational framework in which C. R. Rogers's (1957) core conditions remain the primary catalyst of therapeutic change and cognitive‐behavioral work is accomplished while adhering to person‐centered principles. Important ideas asserted include the following: Cognitive‐behavioral tasks occur naturally within the person‐centered approach, knowledge of cognitive‐behavioral theory can increase counselor empathy, and cognitive‐behavioral techniques can be carefully applied within a person‐centered relational framework. Finally, the person‐centered relational framework with other theories is addressed.     

The Validity of Verifiable and Non‐verifiable Biodata Items: An Examination Across Applicants and Incumbents

This study examines the influence of item verifiability (non‐verifiable vs. verifiable), context (applicant vs. incumbent), and keying procedure on biodata mean test scores and validity. Concurrent and predictive validation studies were conducted using a sample of 425 call center incumbents and a sample of 410 call center applicants. Although applicants did not obtain significantly higher mean biodata scores, results provide support for the hypothesis that the non‐verifiable biodata composite would be less valid in the applicant context, while the verifiable biodata composite would be equally valid across both the applicant and incumbent contexts. The same pattern of results was obtained using both item‐ and option‐keying procedures. Implications for research and practice are discussed.     

Isolating the evocative and abative effects of an establishing operation on challenging behavior

Establishing operations (EO) influence operant responding by altering the reinforcing effectiveness of consequences (reinforcer establishing or abolishing effect) and changing the frequency of behavior that has been reinforced by those consequences in the past (evocative or abative effect) (Michael, 1982 , 1993 ). In this study we attempted to isolate the evocative and abative effects of an EO for positively reinforced challenging behavior with a person with autism and developmental disabilities. The study consisted of three phases. First, an analogue functional analysis identified attention as maintaining challenging behavior. Second, access to attention was systematically controlled (continuous access versus no access) immediately prior to functional analysis sessions in which the participant received attention on an FR1 schedule. Results of this phase indicated that challenging behavior occurred at higher levels during the functional analysis sessions when access to attention was restricted immediately prior to sessions (i.e., no access appeared to function as an EO). In the third phase, prior access to attention was again controlled as in the second phase of the study, however the participant was then placed on extinction. The results of this final phase seem to indicate that no access to the reinforcer prior to extinction had an evocative effect (produced high levels of responding) whereas access to the reinforcer had an abative effect (produced lower levels of responding) during extinction sessions. Copyright © 2006 John Wiley & Sons, Ltd.     

Internet identification and future internet use.

This paper reports a study investigating the relationship between Internet identification and future Internet use. We predict that Internet identification is stable over time and that it is predictive of future use. The participants were 216 undergraduate students (184 females and 32 males) from five universities in the United Kingdom. They completed a questionnaire concerning their use of the Internet and a measure of Internet identification at the start of the academic year and at the end of the academic year. We found that Internet identification measured at the beginning of the academic year was positively related to Internet identification measured at the end of the academic year. Furthermore, there was a positive relationship between Internet identification and future general Internet use and a positive relationship between Internet identification and future educational Internet use.     

Can CBT Be Effective for Aboriginal Australians? Perspectives of Aboriginal Practitioners Trained in CBT

The objective of the study was to investigate whether high and low intensity versions of cognitive behaviour therapy (CBT) might be an effective therapeutic approach for enhancing the mental health of Aboriginal Australians. Five university‐educated Aboriginal counsellors received in‐depth training in CBT. Over the following year, they used CBT strategies with their clients, and met 10 times as a participatory action research group. The group addressed three key questions: (a) Does CBT appear to be useful for Aboriginal Australians? (b) If so, what elements of CBT are perceived to be effective? (c) What adaptations might be made to CBT to enhance its effectiveness with Aboriginal Australians? The resulting qualitative data were transcribed and analysed. Counsellors perceived CBT to be very useful for their Aboriginal clients and for themselves. They reported that it enhanced their clients' well‐being, their own clinical skills, and their own well‐being, and it reduced burnout. The qualities of CBT that were perceived to be effective were its adaptability, pragmatic here‐and‐now approach, capacity for low‐intensity interventions, safe containing structure, promotion of self‐agency, and valuable techniques. It was suggested that the prime requirement for adaptations to CBT were that they would need to fit different social and cultural contexts.     

Age-related differences in responses to thoughts of one's own death: mortality salience and judgments of moral transgressions

Two experiments explored age differences in response to reminders of death. Terror management research has shown that death reminders lead to increased adherence to and defense of one's cultural worldview. In Study 1, the effect of mortality salience (MS) on evaluations of moral transgressions made by younger and older adults was compared. Whereas younger adults showed the typical pattern of harsher judgments in response to MS, older adults did not. Study 2 compared younger and older adults' responses to both the typical MS induction and a more subtle death reminder. Whereas younger adults responded to both MS inductions with harsher evaluations, older adults made significantly less harsh evaluations after the subtle MS induction. Explanations for this developmental shift in responses to reminders of death are discussed.     

Impact of contingency manipulations on accessory stimulus effects

Accessory tone stimuli facilitate response performance despite being irrelevant for the current task. In order to investigate which processes are affected by accessory stimuli, we presented accessory tones in a simple response time (RT) task while varying the contingencies between accessory stimulation and either responses(Experiment 1) or stimulus conditions (Experiment 2). Accessory tones speeded up responding to a larger degree when they were conjointly presented within go compared with no-go trials. In contrast, contingency variation with stimulus conditions did not alter the impact of accessory stimuli. Additionally, accessory tones increased response force. Thus, we conclude that in simple RT tasks accessory tones influence response-related stages such as response selection and response execution rather than perceptual processes.