Knowledge is not everything: analysis of children's performance on a haptic comparison task

The relative effects of developmental level and domain-specific knowledge on children's ability to identify and make similarity decisions about object concepts based only on haptic (touch) information were investigated. Children aged 4-9 years with varying levels of dinosaur knowledge completed a cross-comparison task in which they haptically explored pairs of familiar (dinosaur) and unfamiliar (sea creature) models that varied in terms of their degree of differentiability. Older children explored models more exhaustively, found more differentiating features and consequently made fewer errors than younger children did. High knowledge enabled children to identify models correctly, but was also associated with the use of a hypothesis testing strategy, which led children to make greater numbers of "miss" errors on the cross-comparison task. Performance in the control domain illustrated that the hypothesis testing strategy was specific to the high knowledge domain. Potential explanations for the role of knowledge and development in haptic exploration are considered.     

The Personality Assessment Inventory Drug Problems Scale: a validity analysis

An analysis of the relationship among the Personality Assessment Inventory (PAI; Morey, 1991, 1996) Drug Problems (DRG) scale scores, the Addiction Severity Index (ASI; McLellan et al., 1992) scores, and urine toxicology reports revealed that the PAI Drug Problem scale scores of 100 substance-using and substance-abusing men and women were distributed in a manner that was in agreement with the guidelines suggested by Morey (1991, 1996) in the PAI manual. There were significant correlations among the PAI DRG scale and the ASI scales related to frequency of use, negative consequences of use, and need and desire for treatment. Overall, higher scores did reflect both more serious involvements with drug use and more serious problems as a consequence of their involvement.     

The haptic Müller-Lyer illusion in sighted and blind people

We examined the effect of visual experience on the haptic Müller-Lyer illusion. Subjects made size estimates of raised lines by using a sliding haptic ruler. Independent groups of blind-folded-sighted, late-blind, congenitally blind, and low-vision subjects judged the sizes of wings-in and wings-out stimuli, plain lines, and lines with short vertical ends. An illusion was found, since the wings-in stimuli were judged as shorter than the wings-out patterns and all of the other stimuli. Subjects generally underestimated the lengths of lines. In a second experiment we found a nonsignificant difference between length judgments of raised lines as opposed to smooth wooden dowels. The strength of the haptic illusion depends upon the angles of the wings, with a much stronger illusion for more acute angles. The effect of visual status was nonsignificant, suggesting that spatial distortion in the haptic Müller-Lyer illusion does not depend upon visual imagery or visual experience.     

Young children can extend motion verbs to point-light displays

In the first study using point-light displays (lights corresponding to the joints of the human body) to examine children's understanding of verbs, 3-year-olds were tested to see if they could perceive familiar actions that corresponded to motion verbs (e.g., walking). Experiment 1 showed that children could extend familiar motion verbs (e.g., walking and dancing) to videotaped point-light actions shown in the intermodal preferential looking paradigm. Children watched the action that matched the requested verb significantly more than they watched the action that did not match the verb. In Experiment 2, the findings of Experiment 1 were validated by having children spontaneously produce verbs for these actions. The use of point-light displays may illuminate the factors that contribute to verb learning.     

Intimate partner stalking and femicide: urgent implications for women's safety

This study describes the type and extent of intimate partner stalking and threatening behaviors that occurred within 12 months prior to a major assault or attempted or actual partner femicide and specifies which behaviors were associated with an increased risk of potential or actual lethality.The design was a ten-city case-control study of 821 women: 384 abuse victims and 437 attempted or actual femicide informants. Data were derived using a 16-item inventory. Logistic regressions, with adjustments for demographic variables, were used to identify the significant perpetrator behaviors associated with attempted/actual femicide.Women who reported the perpetrator followed or spied on them were more than twice as likely t o become attempted/actual femicide victims. Threats by the perpetrator to harm the children if the woman left or did not return to the relationship place the woman at a ninefold increase in the risk of attempted/actual femicide. Conclusions are that certain stalking and threatening behaviors are strong risk factors for lethality, and women must be so advised.     

Putting things into perspective: individual differences in working-memory span and the integration of information

An important function of working memory is the integration of incoming information into an appropriate model of the contextual situation. We hypothesized that individual variability in working-memory function (estimated using Engle's operation-span measure) may lead to differential reactivity to a changing context. We recorded event-related brain potentials (ERPs) and reaction-time measures to stimuli embedded in long stimulus series (two auditory discrimination tasks), and examined the participants' responses in relation to how the current stimuli fit with the context generated by the previous stimuli. In both tasks, participants with low working-memory span scores showed larger brain responses as a function of variations in the local stimulus sequence than participants with high span scores. These data suggest that the low working-memory span group is more affected by the local stimulus sequence than the high span group, possibly because they are more easily swayed by ongoing changes and are therefore less capable of maintaining their attention on the overall sequence.     

Deception of parents during adolescence

Two hundred eighty-one undergraduates at a large university in the southeastern United States anonymously completed a 26-item questionnaire about the degree to which they deceived their parents during high school. Only five percent of the respondents reported that they had never lied to their parents about "where I was." "Who I was with," "my alcohol use," and "my sexual behavior" were additional topics about which they lied the most. It was also found that (1) females lied more than males about sexual behavior, (2) the opposite-sex parent was deceived more often, and (3) intact homes were associated with more lying. Respondents also reported more lies when they lived with their parents than when they left for college. The implications of the findings are discussed.     

Globalising counselling: humanistic counselling in Kenya

This paper explores the application of a Western, psychologically-based model of counselling and counselling training in contexts where the social and cultural conditions differ from mainstream Western societies. A group of Kenyan trainee counsellors following such a course are interviewed about their experience of training. The interview data are analysed to provide a tentative answer to the question of the appropriateness in a Kenyan cultural milieu of a humanistic counselling training model developed in the UK. It is concluded that such application is possible and desirable, if it is undertaken as shared and respectful learning between trainers and trainees.     

The helping relationship and program participation in early childhood home visiting

As researchers have focused on better understanding those circumstances under which home visiting can lead to positive effects on parent and child outcomes, there has been growing interest in examining variation in the experiences of families within these programs, including the quality of the helping relationships between home visitors and parents. The current study examined how participating mothers perceive the helping relationship, using information collected from the Early Head Start National Research and Evaluation Project. Results suggest that although maternal report of the helping relationship is biased towards positive ratings, it remains a significant predictor of program participation, over and above general program satisfaction. Implications for measurement development and program interventions are discussed.