Deceiving suspects about their alibi is equally harmful to the innocent and guilty

A common belief in police officers is that guilty suspects' statements are less consistent than innocent suspects'. This could leave guilty suspects more vulnerable to missing inconsistencies externally induced into their alibis. Source monitoring and cognitive load approaches suggest that untruthfulness rather than guilt should predict proneness to such deception. Manipulating both guilt and truthfulness, we tested these opposing hypotheses. One hundred twenty‐six participants were accused of stealing gift vouchers after wandering about a building. When interviewed several days later, participants rarely detected alterations in their alibi (23–29%). Unexpectedly, for one of three detection measures, untruthful participants detected more manipulations than did truthful participants. Guilt did not moderate detection rates. Manipulations were equally harmful for guilty and innocent suspects, and blindness to the alibi manipulations was not useful for discriminating innocent from guilty suspects. Because blindness effects are easy to elicit in the legal context, techniques that externally induce inconsistencies should be avoided.     

Social intelligence and interview accuracy: Individual differences in the ability to construct interviews and rate accurately

This research examined differences in interviewers’ ability to identify effective interview questions and to accurately rate interviewees’ responses. Given the theoretical association between these interview activities and the construct of social intelligence (SI), a performance‐based measure of SI was developed utilizing situational judgment test methodology. The initial step was to examine evidence of the psychometric properties and construct validity of the new SI measure. The SI measure, a test of general mental ability (GMA), and a personality inventory were then used to examine aspects of rater performance. Participants chose a set of interview questions and viewed interviewee responses during a videotaped interview. Results showed that people higher in SI and GMA chose interview questions judged by experts to be superior and were more accurate in rating interviewee responses. The SI measure explained variance beyond GMA and outperformed a trait‐based SI measure. Implications for the selection and training of interviewers are discussed.     

Option weights should be determined empirically and not by experts when assessing knowledge with multiple‐choice items

Multiple‐choice tests are frequently used in personnel selection contexts to measure knowledge and abilities. Option weighting is an alternative multiple‐choice scoring procedure that awards partial credit for incomplete knowledge reflected in applicants’ distractor choices. We investigated whether option weights should be based on expert judgment or on empirical data when trying to outperform conventional number‐right scoring in terms of reliability and validity. To obtain generalizable results, we used repeated random sub‐sampling validation and found that empirical option weighting, but not expert option weighting, increased the reliability of a knowledge test. Neither option weighting procedure improved test validity. We recommend to improve the reliability of existing ability and knowledge tests used for personnel selection by computing and publishing empirical option weights.     

The Essentialized Self: Implications for Motivation and Self‐Regulation

Persuasion attempts are more likely to stick and less likely to be counterargued if they fit the ways people naturally make sense of themselves and their world. One way to do that is to yoke persuasion to the social categories people experience as “true” and “natural.” Gelman and Echelbarger's (2019) integrative review of essentialism outlines the emergence of essentialism in children's reasoning. Connecting their discussion with identity‐based motivation theory (D. Oyserman, 2015) and a culture‐as‐situated cognition (D. Oyserman, 2017) perspective, this commentary addresses how an essentialized self can facilitate or impair motivation and self‐regulation and potentiate or undermine persuasive efforts.     

Perspectives of Homeschoolers Motivated by Religious and Moral Reasons

This study sought to highlight the association between motivation to homeschool and public school enrollment. Homeschooling parents (n?=?1052) across the United States responded to questions from a survey administered online. Logistic regression analysis and the chi-square test showed that homeschooling parents who chose the religious/moral answer option on the survey as the reason to homeschool, were less likely to choose to enroll into a public school program. Qualitatively, the narrative data of religious/moral homeschoolers and their reasons not to enroll in public education provided a number of themes, including quality of the environment (n?=?22) and reasons based on religion and faith (n?=?18). These findings may prove useful for public school officials who desire to know more about how some families make educational decisions.     

The influence of episodic memory decline on value-based choice

Recent studies suggest the involvement of episodic memory in value-based decisions as a source of information about subjective values of choice options. We therefore tested the link between age-related memory decline and inconsistencies in value-based decisions in 30 cognitively healthy older adults. Within the pre-registered experiment, the inconsistencies were measured in two ways: i) the consistency between stated preferences and revealed choices; ii) the amount of intransitivities in choice triplets, revealed in a forced paired choice task including all possible pairings of 20 food products. Although no significant association of memory functions to number of intransitive triplets was observed, participants with lower memory scores were more likely to choose the item for which they stated a lower preference. The results suggest a higher noise in the underlying preference signal in participants with lower memory. We discuss the results in the context of the unique needs of elderly consumers.     

素食的心理过程及影响因素

随着人们对健康、环境以及动物保护的关注, 素食主义日渐兴起。国内外对素食的心理学研究仍处于起步阶段。个体选择素食的心理过程涉及认知、情感、动机、认同感等方面, 素食行为受到个体差异、刻板印象、宏观因素的影响。未来研究有待深入探讨社会文化对素食行为的影响、中国文化情境下对素与素食的社会表征、素食的具身认知效应以及素食亚文化的动态形成过程, 以期引导对个体健康与环境有益的饮食模式。     

The physician values in practice scale: Construction and initial validation

Measures of values typically appraise the construct globally, across life domains or relative to a broad life domain such as work. We conducted two studies to construct and initially validate an occupation- and context-specific values measure. Study 1, based on a sample of 192 medical students, describes the initial construction and item analysis of the physician values in practice scale (PVIPS), which produced a 15-factor model. Study 2 reports on a further analysis and refinement of the instrument with a national sample of 644 medical students. Results supported the basic psychometric properties of the PVIPS items. Exploratory factor analysis in Study 2 extracted six factors consistent with a theoretical model of values (Dawis, 1991) and accounting for 61% of the variance: Prestige, Service, Autonomy, Lifestyle, Management, and Scholarly Pursuits. The PVIPS shows promise as a values measure for medical students and physicians encountering career specialty and medical practice style decisions. Interested researchers may construct similar scales for other occupations to promote contextualized appraisals of values.     

An open measurement problem of interest

This open problem urges a seach for a nice “union” of algbraic measurement models having two or more operations and probabilistic choice models. The difficulty lies in arriving at probabilistic formulations of linking properties, such as distribution properties, between the two operations. The goal is a formulation that leads to a representation theorem in terms of a random variable representation and that reduces to a known algebraic representation when there is no noise.     

Local preference in concurrent schedules: the effects of reinforcer sequences

We investigated the effects that sequences of reinforcers obtained from the same response key have on local preference in concurrent variable-interval schedules with pigeons as subjects. With an overall reinforcer rate of one every 27 s, on average, reinforcers were scheduled dependently, and the probability that a reinforcer would be arranged on the same alternative as the previous reinforcer was manipulated. Throughout the experiment, the overall reinforcer ratio was 1:1, but across conditions we varied the average lengths of same-key reinforcer sequences by varying this conditional probability from 0 to 1. Thus, in some conditions, reinforcer locations changed frequently, whereas in others there tended to be very long sequences of same-key reinforcers. Although there was a general tendency to stay at the just-reinforced alternative, this tendency was considerably decreased in conditions where same-key reinforcer sequences were short. Some effects of reinforcers are at least partly to be accounted for by their signaling subsequent reinforcer locations.