No decision‐maker is an Island: integrating expert advice with information acquisition

The present research examined the social context of information acquisition. The main purpose was to examine how decision‐makers' information acquisition processes changed when they were provided access to expert advice. Results indicated that all decision‐makers opted to acquire advice; however, they typically did so only after completing over 75% of their own information search. Decision‐makers agreed more with the advice as task complexity increased, but, in general, searched information in two stages—i.e., a pre‐advice “hypothesis generation” stage and a post‐advice “hypothesis testing” stage. To behave in an adaptive manner, decision‐makers could have used expert advice either to increase their decision accuracy or to reduce their effort expenditure (or both); they chose the former. Implications and further extensions are discussed. Copyright © 2006 John Wiley & Sons, Ltd.     

A comparison of retrospective accounts of childhood near-death experiences with contemporary pediatric near-death experience accounts

I compared five childhood near-death experiences (NDEs) reported by adults and another five NDEs reported by minors, in terms of Ring's five NDE stages, Greyson's four NDE components, Moody and Perry's 12 NDE traits, Sabom's 16 general characteristics, and Gallup and Proctor's 10 basic positive experiences. In this combined pool of 47 NDE characteristics (which were interdependent), only two relating to time sense showed significant differences between the adults' retrospective reports of childhood NDEs and the children's contemporary NDE reports, and that number of differences would be expected by chance. This study therefore supports the claims of previous researchers that adults' retrospective reports of childhood NDEs are not embellished or distorted.     

The Assessment of Post‐traumatic Stress Disorder for Workers' Compensation in Emergency Service Personnel

There is considerable debate concerning the diagnosis of post‐traumatic stress disorder (PTSD) in compensation claims. This study reviewed the quality of the assessment reports prepared by clinicians who evaluated 31 emergency service workers making PTSD‐related compensation claims. Assessments were conducted by 4‐year trained psychologists (39%), psychologists holding a masters degree (36%), and psychiatrists (19%). The assessment reports were evaluated relative to the diagnostic criteria for PTSD in the Diagnostic and Statistical Manual of Mental Disorders 4th edition (2000). In the majority of cases (81%), the assessor determined that the emergency service worker had PTSD, but only one report met the minimum standard for that diagnosis. In the majority (65%) of cases the clinician failed to address the possibility of malingering. These data suggest that clinical assessment reports for PTSD frequently fail to meet minimum assessment standards.     

Metacognitive myopia and the overutilization of misleading advice

Previous research on advice taking has explained the failure to exploit collective wisdom in terms of the egocentric underweighting of advice provided by independent others. The present research is concerned with an opposite and more radical source of irrational advice taking, namely, the failure to critically assess the validity of advice due to metacognitive myopia. Participants could use the advice of one or two experts when estimating health risks. They read sketches of the study samples that experts had drawn to estimate conditional probabilities (e.g., of HIV‐given drug addiction). Whether samples were valid or seriously biased, subsequent judgments were strongly affected by any advice (Experiment 1). Uncritical reliance on any advice persisted when participants were sensitized to the contrast of valid and invalid advice in a repeated measures design (Experiment 2), when participants themselves believed advice not to be valid (Experiment 3), and even after full debriefing about invalid advice (Experiment 4). Lay advice exerted a similar influence as expert advice (Experiment 5). Although these provocative results are independent of numeracy and consensus (Experiment 6), they highlight the impact of metacognitive myopia as an impediment of social rationality.     

Drop the Small Talk When Establishing Baseline Behaviour in Interviews

The present experiment investigated the behavioural patterns of interviewees when comparing their baseline behaviour, prior to the interview, with their behaviour during the investigative interview. Similar to what has been advised in the police literature, the truthful baseline behaviour was established prior to the interview through non‐threatening questions. The investigative part of the interview then followed in which the interviewee was aware that they would be assessed on whether they were lying. During the investigative part, interviewees either discussed the job that they had (truth tellers, n = 128) or pretended to have (liars, n = 115). Findings revealed that both liars and truth tellers' behavioural patterns differed between the baseline behaviour and the investigative part of the interview. The findings suggest small talk should not be used as a baseline comparison with the investigative part of the interview when determining if the interviewee is being deceitful. An alternative way of using a baseline lie detection method, the comparable truth method, is discussed. Copyright © 2014 John Wiley & Sons, Ltd.     

Be All That You Can Be: Enhancing Human Performance1

Key findings and conclusions from a landmark study conducted by a National Research Council Committee are discussed. The 12‐year study was divided into 4 phases that covered topics of individual, small group, and organizational performance. Concentrating primarily on techniques with strong claims for enhancing performance, the committee found little support for some (e.g., sleep learning, meditation, parapsychological techniques, hypnosis, total quality management) and stronger support for others (e.g., mental practice, expert modeling, cooperative learning, team training, practice to optimize transfer of cognitive and social skills). Insights were also obtained about the roles of expectancy effects, belief perseverance, emotions, thought suppression, and organizational cultures. The article highlights the continuing contributions made by committee members in such areas as transfer, expert modeling, self‐efficacy, mental practice, organizational design and enhanced performance, and conflict resolution.     

Australian community responses to the use of genetic testing for personalised health promotion

Personalised genetic health promotion may soon be available and affordable. To explore its likely public acceptance in Australia, a community sample (N = 800) provided quantitative and qualitative responses to a vignette scenario about a hypothetical expert who could test their genes and, based on this genetic profile, provide personalised health promotion advice. Three theoretical models were tested to explicate the process by which cognitive–affective factors of risk beliefs, benefit beliefs, and trust judgements influenced behavioural intentions. Results supported an expert trust model, where general beliefs about the risks and benefits of medical advances and general medical trust had indirect influences, while trust in a specific medical expert had a direct influence, on health promotion intentions. Subjective reasons for intentions included moral concerns, fear, trust, mistrust and a desire to maintain health at any cost. The advent of personalised genetic health promotion may heighten the need for specialised health psychologists.     

A qualitative analysis of mock jurors' deliberations of linkage analysis evidence

Evidence about a suspect's behavioural similarity across a series of crimes has been presented in legal proceedings in at least three different countries. Its admission as expert evidence, whilst still rare, is becoming more common thus it is important for us to understand how such evidence is received by jurors and legal professionals. This article reports on a qualitative analysis of mock jurors' deliberations about expert linkage analysis evidence. Three groups of mock jurors (N = 20) were presented with the prosecution's linkage analysis evidence from the USA State v. Fortin I murder trial and expert evidence for the defence constructed for the purposes of the study. Each group was asked to deliberate and reach a verdict. Deliberations were video‐recorded and subject to thematic content analysis. The themes that emerged were varied. Analysis suggested that the mock jurors were cautious of the expert evidence of behavioural similarity. In some cases they were sceptical of the expert. They articulated a preference that expert opinion be supported using statistics. Additional themes included jurors having misconceptions concerning what is typical offender behaviour during rape which suggests there is a need for expert linkage analysis evidence regarding behavioural similarities and the relative frequencies of crime scene behaviours. Copyright © 2010 John Wiley & Sons, Ltd.     

Do human figure diagrams help alleged victims of sexual abuse provide elaborate and clear accounts of physical contact with alleged perpetrators?

The present study examined whether the use of human figure diagrams (HFDs) within a well‐structured interview was associated with more elaborate and clearer accounts about physical contact that had occurred in the course of an alleged abuse. The sample included investigative interviews of 88 children ranging from 4 to 13 years of age. Children were interviewed using the NICHD investigative interview protocol, and were then asked a series of questions in association with unclothed gender‐neutral outline diagrams of a human body. A new coding scheme was developed to examine the types and clarity of touch‐related information. Use of the HFDs was associated with reports of new touches not mentioned before and elaborations regarding the body parts reportedly touched. The HFDs especially helped clarify reports by the oldest rather than the youngest children. The clarity of children's accounts of touch was also greater when details were sought using recall prompts. Copyright © 2009 John Wiley & Sons, Ltd.     

Best Practice Recommendations Still Fail to Result in Action: A National 10‐Year Follow‐up Study of Investigative Interviews in CSA Cases

The present study examined a national sample of Norwegian investigative interviews in alleged child sexual abuse cases (N = 224) across a 10‐year period (2002–2012), in order to decide whether practice had improved over the decade in terms of the types of questions asked. The results indicate that the frequency of open‐ended, directive, option‐posing, and suggestive questions asked was unchanged during the 10‐year period, but that the frequency of repeated questions had increased significantly. When analyzed together with the results from a previous study of interview practice covering the period of 1990–2002, long‐term trends were found to be similarly stable, with no change in the frequency of open‐ended and suggestive questions asked over a 22‐year perspective. However, a decreasing frequency of option‐posing questions observed accompanied by an increasing frequency of directive questions may be considered a positive trend. Copyright © 2015 John Wiley & Sons, Ltd.     

A systematic, large-scale study of synaesthesia: implications for the role of early experience in lexical-colour associations

For individuals with synaesthesia, stimuli in one sensory modality elicit anomalous experiences in another modality. For example, the sound of a particular piano note may be 'seen' as a unique colour, or the taste of a familiar food may be 'felt' as a distinct bodily sensation. We report a study of 192 adult synaesthetes, in which we administered a structured questionnaire to determine the relative frequency and characteristics of different types of synaesthetic experience. Our data suggest the prevalence of synaesthesia in the adult population is approximately 1 in 1150 females and 1 in 7150 males. The incidence of left-handedness in our sample was within the normal range, contrary to previous claims. We did, however, find that synaesthetes are more likely to be involved in artistic pursuits, consistent with anecdotal reports. We also examined responses from a subset of 150 synaesthetes for whom letters, digits and words induce colour experiences ('lexical-colour' synaesthesia). There was a striking consistency in the colours induced by certain letters and digits in these individuals. For example, 'R' elicited red for 36% of the sample, 'Y' elicited yellow for 45%, and 'D' elicited brown for 47%. Similar trends were apparent for a group of non-synaesthetic controls who were asked to associate colours with letters and digits. Based on these findings, we suggest that the development of lexical-colour synaesthesia in many cases incorporates early learning experiences common to all individuals. Moreover, many of our synaesthetes experienced colours only for days of the week, letters or digits, suggesting that inducers that are part of a conventional sequence (e.g. Monday, Tuesday, Wednesday...; A, B, C...; 1, 2, 3...) may be particularly important in the development of synaesthetic inducer-colour pairs. We speculate that the learning of such sequences during an early critical period determines the particular pattern of lexical-colour links, and that this pattern then generalises to other words.     

Assessing the quality of child investigative interviewing in the Netherlands

Using evidence‐based guidelines to interview children is an important means to obtain complete and accurate accounts. In the current study, we examined the quality of child investigative interviewing in the Netherlands. To examine this, we compared the Dutch Scenario Model with the National Institute of Child Health and Human Development Protocol and interviews from countries that did not follow a specific protocol. Our principal result was that Dutch child interviewers rarely asked recommended open prompts that are known to elicit detailed and accurate testimonies from children. Furthermore, we found that the scenario model contained the highest number of directive questions compared with interviews from other countries. Our findings show that the Dutch Scenario Model is not well aligned with current research‐based recommendations for interviewing children.     

Ask and ye shall receive: behavioural specificity in the accuracy of subjective memory complaints

A cross‐sectional sample of adults completed an extensive set of cognitive tasks and a set of questionnaires measuring depressive affect, memory complaint, and other variables. During an interview about their prescribed medications, the participants also reported whether they were having problems remembering to take the medication as prescribed (an everyday prospective memory problem). Their medication adherence at home was then monitored for one month using pill bottles which microelectronic caps. Cognitive tasks correlated with memory complaints, as measured by the Memory Functioning Questionnaire, but not with problems in remembering to take medications. The highest correlations were with a free recall task. Conversely, reported problems with medication adherence during the interview had good predictive validity for subsequent adherence problems, but not for cognitive tasks, including a measure of prospective memory. Depressive affect was related to both the questionnaire and the interview complaints about medication adherence, but a structural equation model showed that the relationships of cognition and medication adherence to the different memory complaints were independent of depressive affect. The results are interpreted in terms of a behavioural specificity hypothesis, which states that adults' self‐reports of memory problems are valid when they focus directly on specific memory‐related behaviours in everyday contexts. Copyright © 2000 John Wiley & Sons, Ltd.     

Epistemic Contextualism: An Idle Hypothesis

Epistemic contextualism is one of the most hotly debated topics in contemporary epistemology. Contextualists claim that ‘know’ is a context-sensitive verb associated with different evidential standards in different contexts. Contextualists motivate their view based on a set of behavioural claims. In this paper, I show that several of these behavioural claims are false. I also show that contextualist test cases suffer from a critical confound, which derives from people's tendency to defer to speakers’ statements about their own mental states. My evidence consists in results from several behavioural experiments. I conclude that contextualism is an idle hypothesis and I propose some general methodological lessons.     

Irish norms for the SCORE‐15 and 28 from a national telephone survey

In this study a 29‐item version of the systemic clinical outcome and routine evaluation (SCORE), which contained all items from the SCORE‐15 and SCORE‐28, was used to develop norms for both the 15 and the 28 versions of the SCORE from the same sample. In a random digit dialling telephone survey, a stratified national random sample of 403 adults living in the Republic of Ireland and Northern Ireland completed the SCORE and brief measures of family and personal adjustment. Using receiver operating characteristic curve analyses, cut‐off points for the SCORE‐28 and 15 were found to identify families of children with significant emotional and behavioural problems. We also established 90^th percentile points and percentages of cases falling above each scale point for both versions of the SCORE. Confirmatory factor analyses showed that, for both versions of the SCORE, the data fit the three factor solutions found in previous studies. The SCORE scales also had significant correlations with measures of family, parental and child adjustment, and negligible correlations with socioeconomic variables and social desirability response set.     

You'd Better Ask an Expert: Mitigating the Comprehensibility Effect on Laypeople's Decisions About Science‐Based Knowledge Claims

Research shows that laypeople rely more on their capabilities to make decisions about science‐based knowledge claims after reading comprehensible compared with less comprehensible topic information. This can be problematic, because complex science‐based issues usually cannot be understood fully without experts' further advice. The present study investigated whether making readers aware of the ‘epistemic topic complexity’ of an issue (i.e., the extent of existing topic knowledge, the complexity of relationships between concepts, and the existence of multiple expert perspectives) can mitigate this influence of comprehensibility. Undergraduate students read comprehensible or less comprehensible health texts with topic knowledge being described as complex, uncomplex, or not described at all. They reported whether they agreed with the claim and would rely on their decision. Results showed that after reading comprehensible information, participants' reliance on their decision increased less when they considered topic knowledge to be complex. Practical implications of the findings are discussed. Copyright © 2014 John Wiley & Sons, Ltd.     

Reexamining the linear and U‐shaped relationships between self‐control and emotional and behavioural problems

Previous studies have demonstrated a linear relationship between self‐control and emotional and behavioural problems. However, some scholars have assumed that both under‐control and over‐control may result in undesired problems, which implies a U‐shaped relationship between them. This issue was reexamined in three Chinese samples in the present study. Self‐report measures that conceptually assessed self‐control and emotional (i.e. depression and negative emotion) and behavioural (i.e. rule‐breaking behaviour, aggression and counterproductive work behaviour) problems were administered to adolescents (N = 885), university students (N = 671) and employees (N = 500). Results of piecewise linear regression show that there were significant quadratic effects of self‐control on emotional and behavioural problems in adolescents and on behavioural problems in employees, but no significant U‐shaped associations between them were found. Implications for future studies are discussed.