The development of metasuggestibility in children

One component of metasuggestibility is the understanding that a person's statements can influence another person's reports. The purpose of the present study was to examine the development of this understanding in school‐aged children. We produced a short video in which a boy makes a false allegation about being hit following an adult's suggestive interview. Children aged 6–13 years (N = 196) watched the video and answered open‐ended and forced‐choice questions about why the boy made a false allegation. The 6‐ and 7‐year‐olds performed poorly on all question types, whereas the 12‐ and 13‐year‐olds were at ceiling. There were developmental increases in metasuggestibility between 8 and 11 years. Our findings indicate that metasuggestibility undergoes prolonged development well into the school years. Implications for child witness training programs are discussed. Copyright © 2010 John Wiley & Sons, Ltd.     

Student Ratings of a Male and Female Professors’ Lecture on Sex Discrimination in the Workforce

Using an experimental design, male (n = 41) and female (n = 46) undergraduate students in the southeastern USA evaluated an identical written lecture by a male and female professor on pay disparities between men and women in the workforce suggesting sex discrimination. Regardless of the students’ sex, the male professor and his lecture was rated more positively and less sexist than the female professor. Moderated multiple regression analysis indicated that more traditional and gender stereotypical attitudes toward women in male students were related to greater sexism ratings of the female professor compared to the male professor whereas; no differences on ratings of sexism between the male and female professor were found for male students with more liberal attitudes.     

Judgments of genuine, suppressed, and faked facial expressions of pain.

The process of discriminating among genuine, suppressed, and faked expressions of pain was examined. Untrained judges estimated the severity of pain being experienced when viewing videotaped facial expressions of chronic pain patients undergoing a painful diagnostic test or dissimulating reactions. Verbal feedback as to whether pain was experienced also was provided, so as to be either consistent or inconsistent with the facial expression. Judges were able to distinguish genuine pain faces from baseline expressions but, relative to genuine pain faces, attributed more pain to faked faces and less pain to suppressed ones. Advance warning of deception did not improve discrimination but led to a more conservative or nonempathic judging style. Verbal feedback increased or decreased judgments, as appropriate, but facial information consistently was assigned greater weight. An augmenting model of the judgment process that attaches considerable importance to the context in which information is provided was supported.     

The rapid-smoking technique: Some physiological effects

The effects of rapid smoking on the blood pressure, pulse rate and cardiac functioning of 58 smokers (30 women and 28 men) are reported. All subjects were healthy volunteers, 45 were under 40 yr of age, the remaining 13 between 40 and 50 yr. They received between 6 and 12 rapid smoking sessions. It was found that, in both the under and over 40 age groups, blood pressure levels and pulse rates increased significantly following rapid smoking sessions. There were, however, significant decreases between sessions and no evidence of a cumulative effect of successive rapid smoking sessions. Some qualitative changes in cardiac functioning were observed, namely the appearance of T wave flattening and S-T depression. None of the changes were considered to be of sufficient magnitude to necessitate exclusion from the programme, but confirm the need to monitor closely the physiological functioning of persons undergoing rapid smoking.     

Reducing child witnesses' false reports of misinformation from parents.

This study explored whether a source-monitoring training (SMT) procedure, in which children distinguished between events they recently witnessed versus events they only heard described, would help 3- to 8-year-olds to report only experienced events during a target interview. Children (N = 132) who witnessed science demonstrations and subsequently heard their parents describe nonexperienced events received SMT before or after a forensic-style interview. SMT reduced the number of false reports that 7- and 8-year-old children reported in response to direct questions but had no impact on the performance of younger children. Combined with earlier results, these data suggest a transition between 3 and 8 years of age in the strategic use of source-monitoring information to support verbal reports, such that only 7- and 8-year-olds generalize training to a difficult memory task that does not include mention of specific alternative sources.     

Children's eyewitness reports after exposure to misinformation from parents

This study examined how misleading suggestions from parents influenced children's eyewitness reports. Children (3 to 8 years old) participated in science demonstrations, listened to their parents read a story that described experienced and nonexperienced events, and subsequently discussed the science experience in two follow-up interviews. Many children described fictitious events in response to open-ended prompts, and there were no age differences in suggestibility during this phase of the interview. Accuracy declined markedly in response to direct questions, especially for the younger children. Although the older children retracted many of their false reports after receiving source-monitoring instructions, the younger children did not. Path analyses indicated that acquiescence, free recall, and source monitoring all contribute to mediating patterns of suggestibility across age. Results indicate that judgments about the accuracy of children's testimony must consider the possibility of exposure to misinformation prior to formal interviews.     

Individual differences in working memory capacity and visual search: The roles of top-down and bottom-up processing

Individual differences in working memory capacity (WMC) have been implicated in a variety of top-down, attention-control tasks: Higher WMC subjects better ignore irrelevant distractions and withhold habitual responses than do lower WMC subjects. Kane, Poole, Tuholski, and Engle (2006) recently attempted to extend these findings to visual search, but found no relation between WMC and search efficiency, even in difficult tasks yielding steep search slopes. Here we used a visual search task that isolated the contributions of top-down versus bottom-up mechanisms, and induced a habitual response via expectation. Searches that relied primarily on bottom-up mechanisms did not vary with WMC, but searches that relied primarily on top-down mechanisms showed an advantage for higher over lower WMC subjects.     

Cognitive testing of an instrument to evaluate acceptability and use of pre-exposure prophylaxis products among women

Given the range of pre-exposure prophylaxis (PrEP) products currently being tested to prevent HIV in women, a standardized Acceptability and Use of PrEP Products Among Women Tool may facilitate comparisons of product acceptability and use across different geographies, trials, and users. We conducted three rounds of cognitive interviewing over 2 months in 2016, with 28 South African women who had experience participating in a range of PrEP product trials. The final instrument contained 41 items, including five new items that improved construct validity and 22 items modified for clarity. Changes were made due to unclear wording, difficulty answering, participant embarrassment, low response variability, and administrative formatting. Cognitive interviewing provided a means to address issues that would have inhibited this tool's ability to accurately collect data otherwise. This rapid, low-cost study provided valuable insight into participants' understanding of questions and demonstrated the utility of cognitive interviewing in international clinical trials.