Test of Motowidlo et al.'s (1997) Theory of Individual Differences in Task and Contextual Performance

This article examines 20 key issues related to the sliding band method of candidate referral in personnel selection. It does so in a point-and-counter-point format. Its purpose is to facilitate consideration of relevant issues, to correct what we believe are misconceptions and misunderstandings of the technical, legal, and social implications of the method, and to allow us to state our position on these issues clearly. Some scientists and practitioners may choose not to use this approach, but at least their decisions should be based on a clear understanding of the logic and technical basis for it.     

Explanation of Two Anomalous Results in Statistical Mediation Analysis

Previous studies of different methods of testing mediation models have consistently found two anomalous results. The first result is elevated Type I error rates for the bias-corrected and accelerated bias-corrected bootstrap tests not found in nonresampling tests or in resampling tests that did not include a bias correction. This is of special concern as the bias-corrected bootstrap is often recommended and used due to its higher statistical power compared with other tests. The second result is statistical power reaching an asymptote far below 1.0 and in some conditions even declining slightly as the size of the relationship between X and M, a, increased. Two computer simulations were conducted to examine these findings in greater detail. Results from the first simulation found that the increased Type I error rates for the bias-corrected and accelerated bias-corrected bootstrap are a function of an interaction between the size of the individual paths making up the mediated effect and the sample size, such that elevated Type I error rates occur when the sample size is small and the effect size of the nonzero path is medium or larger. Results from the second simulation found that stagnation and decreases in statistical power as a function of the effect size of the a path occurred primarily when the path between M and Y, b, was small. Two empirical mediation examples are provided using data from a steroid prevention and health promotion program aimed at high school football players (Athletes Training and Learning to Avoid Steroids; Goldberg et al., 1996), one to illustrate a possible Type I error for the bias-corrected bootstrap test and a second to illustrate a loss in power related to the size of a. Implications of these findings are discussed.     

Job Performance as Multivariate Dynamic Criteria: Experience Sampling and Multiway Component Analysis

Questions about the dynamic processes that drive behavior at work have been the focus of increasing attention in recent years. Models describing behavior at work and research on momentary behavior indicate that substantial variation exists within individuals. This article examines the rationale behind this body of work and explores a method of analyzing momentary work behavior using experience sampling methods. The article also examines a previously unused set of methods for analyzing data produced by experience sampling. These methods are known collectively as multiway component analysis. Two archetypal techniques of multimode factor analysis, the Parallel factor analysis and the Tucker3 models, are used to analyze data from Miner, Glomb, and Hulin's (2010) experience sampling study of work behavior. The efficacy of these techniques for analyzing experience sampling data is discussed as are the substantive multimode component models obtained.     

The seriousness of crime: A study of popular morality

This article reports the findings from a study that explored how lay people determine the seriousness of criminal offenses. While previous research on this topic has assumed that the perceived seriousness of crimes was primarily determined by differences in physical injury and economic loss, the results of this study indicate that offense seriousness is also affected by judgments subjects make about intent, motive, purpose, “fair play”, and “real harm”.     

A comparison of computer and questionnaire methods of history-taking in a genito-urinary clinic

Abstract

Information on the medical history and symptomatology of 69 patients presenting at a genito-urinary (GU) clinic was obtained either by a computerized interview or a paper questionnaire and the results compared. A comparison was also made between these methods and notes taken during a standard physician interview. Significantly more symptoms were elicited by the computer than the paper questionnaire. Both methods also elicited significantly more symptoms than were recorded by the physician. The patients reported having previously attended a GU clinic more often to the computer than to the physician whereas the questionnaire was no different from the physician. The results indicate that computers can be used satisfactorily to facilitate medical history- taking in GU clinics and may result in a more complete profile of symptoms than either written questionnaire or physician interview.     

Time Perception in Boys With Attention-Deficit/Hyperactivity Disorder According to Time Duration,Distraction and Mode of Presentation

The present study describes the incidence of test refusal at neuropsychological assessment, investigates its correlates, and its stability. The participants were 124 children aged 3.5 years whose development has been followed from birth in the Jyväskylä Longitudinal Study of Dyslexia (JLD). The frequency of test refusal on the Finnish version of the NEPSY was analyzed with respect to the children's concurrent and earlier cognitive and language skills, assessed using tests and parental ratings. Refusal during test-taking was found to be relatively common at this age, and high frequency of refusal at an earlier age was associated with similar tendency at a later age. High test refusal was associated with compromised neuropsychological and linguistic test scores. Missing data due to refusal were more common in neuropsychological tasks requiring verbal production. It is concluded that test refusals reflect a child's poor underlying skills and an attempt to avoid failure, rather than noncompliant or oppositional behavior.     

high-resolution electron microscopy at a (113) symmetric Thermally activated step motion observed by tilt grain-boundary in aluminium

Grain-boundary migration is demonstrated to proceed by lateral propagation of a small step in a (113), [110] symmetric Al tilt grain-boundary. In-situ high-resolution (transmission) electron microscopy (HREM) at 523K allowed the study of atomic-scale detail at video rates during the migration process. The grain-boundary translational states on both sides of the step are identical, which leads to a step dislocation. This defect can move laterally by a combination of climb and glide. Dynamic HREM images indicate considerable atomic agitation within the dislocation core. A detailed temporal analysis of the step movements shows small random displacements of the dislocation core.     

Action video game experience affects oculomotor performance

Action video games have been show to affect a variety of visual and cognitive processes. There is, however, little evidence of whether playing video games can also affect motor action. To investigate the potential link between experience playing action video games and changes in oculomotor action, we tested habitual action video game players (VGPs) and non-video game players (NVGPs) in a saccadic trajectory deviation task. We demonstrate that spatial curvature of a saccadic trajectory towards or away from distractor is profoundly different between VGPs and NVGPs. In addition, task performance accuracy improved over time only in VGPs. Results are discussed in the context of the competing interplay between stimulus-driven motor programming and top–down inhibition during oculomotor execution.     

Discriminating Against “Organ Takers”

This paper offers an exposition of what the question of method in ethics consultation involves under two conditions: when ethics consultation is regarded as a practice and when the question of method is treated systematically. It discusses the concept of the practice and the importance of rules in constituting the actions, cognition, and perceptions of practitioners. The main body of the paper focuses on three elements of the question of method: canon, discipline, and history, which are treated heuristically to outline what the question of method in ethics consultation fully involves.