PsychLib: A library of machine language routines for controlling psychology experiments on the Apple Macintosh computer

The hardware and system software of the Apple Macintosh computer are described, and their implications for conducting psychological research is discussed. A library of machine language routines for presenting auditory and visual stimuli and recording response latencies is described.     

A COMPARISON OF TIME DELAY AND DECREASING PROMPT HIERARCHY STRATEGIES IN TEACHING BANKING SKILLS TO STUDENTS WITH MODERATE HANDICAPS

Four students with moderate handicaps were taught to cash checks and to use an automatic teller through either a decreasing prompt hierarchy or time delay procedure. The strategies were compared within a multielement design. Results indicated that both strategies led to the acquisition of the target tasks; however, the decreasing prompt hierarchy was more efficient. Four and 8-week follow-up probes indicated that the strategies were equally effective in producing maintenance of performance.     

Epistemic Privilege and the Success of Science

Realists and anti‐realists disagree about whether contemporary scientists are epistemically privileged. Because the issue of epistemic privilege figures in arguments in support of and against theoretical knowledge in science, it is worth examining whether or not there is any basis for assuming such privilege. I show that arguments that try to explain the success of science by appeal to some sort of epistemic privilege have, so far, failed. They have failed to give us reason to believe (i) that scientists are prone to develop theories that are true, (ii) that our current theories are not apt to be replaced in the future, and (iii) that science is nearing its completion.     

The root cause of the attentional blink: First-target processing or disruption of input control?

Identification of the second of two targets (T2) is impaired when presented shortly after the first (T1). T1-based theories ascribe this attentional blink (AB) to a T1-initiated period of inattention. Distractor-based theories ascribe it to a disruption of input control caused by post-T1 distractors. The finding that an AB occurs without intertarget distractors (Nieuwenstein, Potter, & Theeuwes, Journal of Experimental Psychology: Human Perception and Performance 35:159-169, 2009) seemingly disconfirms distractor-based theories. The present experiments addressed different ways in which distractor-based theories might account for that finding. Intertarget events were varied in four experiments. Experiment 1 replicated Nieuwenstein, Potter, and Theeuwes??s findings. The next two experiments tested two ways (lack of visual stimulation, violation of expectation) in which the blank intertarget interval might cause an AB. Experiment 4 explored whether backward-masking of T1 can account entirely for the larger AB obtained with intervening distractors or whether distractors also disrupt input control. The results disconfirm predictions from distractor-based theories and support the claim of T1-based theories that T1 processing alone is sufficient for the AB. Simulations based on the eSTST (Wyble, Bowman, & Nieuwenstein, Journal of Experimental Psychology: Human Perception and Performance 35:787-807, 2009) and the B&B models (Olivers & Meeter, Psychological Research, 115, 836-863 2008) were compared. Predictions were more accurate from the T1-based theory (eSTST) than from the distractor-based theory (B&B).     

Getting What's New from Newcomers: Empowering Leadership,Creativity, and Adjustment in the Socialization Context

Researchers consistently argue that organizations need to generate creative ideas to ensure long‐term success and survival. One possible solution for increasing creativity is to inject “fresh blood” into the organization by hiring new employees. However, past work suggests there may be a number of impediments that stifle newcomer creativity and, further, that encouraging newcomer creativity may compromise other adjustment outcomes. Accordingly, the present research examines how empowering leaders, in conjunction with contextual and relational factors (i.e., organizational support for creativity and newcomers' trust in leaders), facilitate newcomer creativity. Study 1 indicates that empowering leadership positively predicts newcomer creativity and that this relationship is contingent on the organizational context. Study 2 reveals that a more specific and proximal contextual socialization factor–newcomers' trust in leaders–is a more potent moderator than organizational support for creativity. Further, these predictors operate through creative process engagement to influence creativity. Finally, results indicate positive links between empowering leadership and role clarity, attachment, and task performance, suggesting that empowering leadership may serve as an important, albeit overlooked, socialization tactic.     

When Civic Virtue isn’t Seen as Virtuous: The Effect of Gender Stereotyping on Civic Virtue Expectations for Women

We examined the extent to which observers’ expectations of target employees’ civic virtue organizational citizenship behaviors (OCB) are a function of both observer- (gender stereotype activation, threat) and target-related (gender) influences. Consistent with a role congruity perspective, we proposed that civic virtue (constructive involvement in the political governance process of the organization) will be expected to a lesser extent of women, but only when gender stereotypes are activated. We confirm this hypothesis across two studies. In Study 1, based on a sample of 187 U.S. undergraduate students (101 women, 86 men), we show that less civic virtue is expected of women when observers’ gender stereotypes are experimentally activated (vs. the non-activated condition). Using an additional sample of 197 U.S. undergraduate students (Study 2; 118 women, 79 men), we extend our findings by demonstrating that less civic virtue was expected of women in a high (vs. low) threat (manipulated) condition. Findings for men are included for comparative and general informational purposes only. We observed no significant changes in civic virtue expectations for men due to our study manipulations. Our research extends prior studies by showing that expectations for civic virtue are diminished for women, but only when gender stereotypes and threat are activated.     

BOOK REVIEWS

This paper explores R. Jacob Emden's surprising quest for the knowledge of alchemy. This important eighteenth-century rabbinic leader searched for ancient books in the library of Göttingen University, sought living experts and read original alchemical works in German. His sustained interest in alchemy reflects an historical phenomenon far deeper than his personal curiosity. By delving into his forgotten 1736 Igeret bikoret, comparing it to his other writings, and then contextualizing it within contemporary European medical discourse, I wish to use the quarrel between competing medical world views, so typical of the early modern era, to understand R. Jacob Emden's alternative, esoteric path to modernity and the specific ties it reveals between theology, law and medical practice.     

Fetal Testosterone,Socio‐Emotional Engagement and Language Development

The present study investigated the relations among fetal testosterone, child socio‐emotional engagement and language development in a sample of 467 children (235 boys) from the Western Australian Pregnancy Cohort (Raine) Study. Bioavailable testosterone concentration measured in umbilical cord blood taken at birth was found to be significantly negatively correlated with socio‐emotional engagement and vocabulary development for boys but not for girls. Socio‐emotional engagement mediated the effect of boys' fetal testosterone levels on their vocabulary development. However, the size of the effects was small, and fetal testosterone and socio‐emotional engagement were no longer significant predictors of boys' vocabulary scores after accounting for the effects of other predictors including maternal age and education, parity, and parent–child book reading. It is concluded that further research into these associations is warranted in both typical and atypical development and that this research would profit from including a broader focus on the role that proximal processes such as socio‐emotional engagement, joint attention and imitation have in mediating the developmental effects of prenatal factors such as fetal testosterone exposure. Copyright © 2012 John Wiley & Sons, Ltd.     

THE LIMITS TO PARTICIPATION IN DIS‐EQUILIBRIUM ECOLOGY: Maori involvement in habitat restoration within Te Urewera National Park

In this paper, we explore conceptualizations of ‘ordinary’ citizens common in public engagement forums on emerging technologies and assumptions from deliberative theory that ordinary people are more likely to be appropriately ‘changed’ through deliberative processes facilitated by experts. Looking at a large US public forum event [the National Citizens Technology Forum (NCTF)], we asked: What were the goals for this exercise and how did they shape conceptualizations of ordinariness and representativeness? Whose goals and conceptualizations were they? Were the engaged citizens ordinary and representative—and were they changed by the exercise? Our exploration revealed that exercise organizers conceived of ordinary citizens as people lacking science and technology backgrounds, without advocacy or business connections to the technologies at hand, and demographically reflecting the US population. Exercise materials also implied that ideal ordinary participants would lack strong opinions and emotions about these technologies. Actual NCTF participants, however, tended to be more educated, have higher incomes, and to be more liberal than the US public, and participants from all backgrounds had a range of relevant knowledge, experiences and opinions about science and technology. They were changed by the exercise in complex and conflicting ways—based as much on their own knowledge and reflections on relational dynamics as on exercise processes, interactions with experts, and information provided in the exercise. We argue that inadequately explored ideas about ordinary citizens are highly problematic. Further, invisible assumptions about what is ‘normal’ among experts and status quo institutions serve to reify the lay–expert divide that engagement exercises are intended to counteract.