Failure to replicate the 'work ethic" effect in pigeons

We report six unsuccessful attempts to replicate the "work ethic" phenomenon reported by Clement, Feltus, Kaiser, and Zentall (2000). In Experiments 1-5, pigeons learned two simultaneous discriminations in which the S+ and S- stimuli were obtained by pecking an initial stimulus once or multiple (20 or 40) times. Subsequent preference tests between the S+ stimuli and between the S- stimuli mostly revealed indifference, on average, between the S+ from the multiple-peck (high-effort) trials and the S+ from the one-peck (low-effort) trials, and likewise between the two respective Sstimuli. Using a slightly different procedure that permitted assessment of the relative aversiveness of low versus high effort, Experiment 6 again revealed a pattern of indifference despite showing that pigeons took considerably longer to begin pecking on high- than on low-effort trials. Our findings call into question the reliability of the original findings and the sufficiency of the hypothesized within-trial contrast mechanism to produce them.     

EXTENSIVE TRAINING IS INSUFFICIENT TO PRODUCE THE WORK‐ETHIC EFFECT IN PIGEONS

Zentall and Singer (2007a) hypothesized that our failure to replicate the work‐ethic effect in pigeons (Vasconcelos, Urcuioli, & Lionello‐DeNolf, 2007) was due to insufficient overtraining following acquisition of the high‐ and low‐effort discriminations. We tested this hypothesis using the original work‐ethic procedure (Experiment 1) and one similar to that used with starlings (Experiment 2) by providing at least 60 overtraining sessions. Despite this extensive overtraining, neither experiment revealed a significant preference for stimuli obtained after high effort. Together with other findings, these data support our contention that pigeons do not reliably show a work‐ethic effect.     

Personal vulnerability and work‐home interaction: The effect of job performance‐based self‐esteem on work/home conflict and facilitation

Innstrand, S. T., Langballe, E. M., Espnes, G. A., Aasland, O. G. & Falkum, E. (2010). Personal vulnerability and work‐home interaction: The effect of job performance‐based self‐esteem on work/home conflict and facilitation. Scandinavian Journal of Psychology 51, 480–487. The aim of the present study was to examine the longitudinal relationship between job performance‐based self‐esteem (JPB‐SE) and work‐home interaction (WHI) in terms of the direction of the interaction (work‐to‐home vs. home‐to‐work) and the effect (conflict vs. facilitation). A sample of 3,475 respondents from eight different occupational groups (lawyers, physicians, nurses, teachers, church ministers, bus drivers, and people working in advertising and information technology) supplied data at two points of time with a two‐year time interval. The two‐wave, cross‐lagged structural equations modeling (SEM) analysis demonstrated reciprocal relationships between these variables, i.e., job performance‐based self‐esteem may act as a precursor as well as an outcome of work‐home interaction. The strongest association was between job performance‐based self‐esteem and work‐to‐home conflict. Previous research on work‐home interaction has mainly focused on situational factors. This longitudinal study expands the work‐home literature by demonstrating how individual vulnerability (job performance‐based self‐esteem) contributes to the explanation of work‐home interactions.     

“To serve and protect” when expecting to be seen negatively: The relation between police officers' contact with citizens,meta‐stereotyping,and work‐related well‐being

We examined the relationship between contact of police officers with citizens, their (meta‐)stereotypes about citizens, and their work‐related well‐being. Ninety‐three police officers from 4 police stations in low‐ and high‐crime regions in France completed the questionnaire. As expected, negative well‐being of police officers is predicted by negative contact with citizens and their belief that police officers are stereotyped negatively by citizens. Moreover, the relationship between negative contact and negative well‐being was mediated by police officers' beliefs that police officers are perceived negatively by citizens, whereas their perceptions of citizens did not mediate this relationship. Interestingly, level of crime did not influence these relationships. Together, this research shows the important role of beliefs about how one's group is stereotyped when in contact with another group as it may have consequences for people's well‐being.     

Much ado about nothing: The zero effect in life‐saving decisions

Zero is a special value in our daily lives, and previous research on how zero values affect decision making leaves many questions to be explored. The present research examined the zero effect in life‐saving decisions and found that people expressed strong preferences for options offering a possibility that no one will die, even when the expected loss was relatively high. The prominence effect (the notion that the option with possibly zero deaths is easy to defend and justify) was proposed as one possible explanation. Furthermore, we also found that the zero effect in these life‐saving decisions occurs only in loss framing rather than gain framing. We discuss the relationships between the zero effect, framing, and evaluation mode in life saving and other domains.     

Gain or non‐loss: The message matching effect of regulatory focus on moral judgements of other‐orientation lies

Previous studies found that individuals with promotion focus are more likely to be persuaded by messages framed in terms of gain‐related words; individuals with prevention focus are more likely to be persuaded by messages framed in terms of loss‐related words. This is known as the message matching effect of regulatory focus. The present study extended this effect into the field of moral judgement of other‐orientation lies. Two experiments were conducted, revealing that (a) individuals with promotion focus judged gain‐framed other‐orientation lies to be more moral, while individuals with prevention focus judged non‐loss‐framed other‐orientation lies to be more moral; and (b) the subjective processing fluency had a partial mediating role in the message matching effect. Theoretical implications and future research directions were discussed.     

Choosing words at the study phase: The self‐choice effect on memory from the viewpoint of connective processing1

Abstract: The self‐choice effect, that is the superior memory performance observed when participants are allowed to choose the item at the study phase than when they are not (lack of choice), has been explained by the encoding‐strategy hypothesis ( Takahashi, 1997 ). This hypothesis distinguishes between organizational processing, which focuses upon the relationship between chosen items, and item‐speci?c processing, which itself focuses on the elements that make the chosen item distinctive. The encoding‐strategy hypothesis predicts that the ability for the successive recall of chosen items can be affected by organized list (Experiment 1). The results of our experiments ran counter to the prediction and were interpreted by a new concept called connective processing, which would emphasize the relationship of paired items. Connective processing was examined through orienting tasks (Experiment 2). The results were more suitably interpreted by connective than organizational processing.     

Instructions as discriminative stimuli (2): A within‐subject examination of the effect of differential reinforcement on establishing novel instructional control1

Abstract: Six undergraduates were exposed to a fixed‐ratio schedule with an instruction to respond slowly and to a differential‐reinforcement‐of‐low‐rate schedule with an instruction to respond rapidly when a white circle was presented on a display monitor. When a yellow circle was presented, however, the subjects were exposed to the fixed‐ratio schedule with the instruction to respond rapidly and to the differential‐reinforcement‐of‐low‐rate schedule with the instruction to respond slowly. Following this, a fixed‐interval schedule was in effect during those stimuli and instructions. Under the white circle, response rates were higher with the instruction to respond slowly than with the instruction to respond rapidly during the fixed‐interval schedule. Such control by instructions was not observed under the yellow circle. A previous study examined establishment of novel instructional control by between‐subject comparisons and found that for three of four subjects ( Okouchi, 1999 ). In contrast, the present results demonstrate the instructional control through within‐subject comparisons for all six subjects.     

The effect of university ranking on learning satisfaction: Social identities and self‐identity as the suppressor and mediators

The popularization of higher education has developed into a worldwide trend of ranking universities. In light of the lack of research from the student perspective and the non‐individualism of East Asian society, the goal of the present study was to integrate social identity theory and characteristics of Chinese achievement goals in order to determine the relationships between university rankings and students’ university identity, major identity, self‐identity, and learning satisfaction (LS). The participants included 1052 undergraduates (49.4% male, 50.6% female) from 13 universities in Taiwan. A questionnaire was conducted. The results of hierarchical regression analyses show that university ranking positively correlates with students’ university identity, major identity, and self‐identity but negatively correlates with LS due to the effect of university identity acting as a suppressor. The results of structural equation modelling show that: (1) students’ major identity and self‐identity completely mediate the effect of university identity on LS; and (2) university ranking has a significantly negative effect on LS after adding multiple identities as the suppressor and mediators. Furthermore, as students progress further into their studies, both their university identity and major identity gradually decline, while their self‐identity remains constant. Theoretical and practical implications for higher education are also discussed.     

The Council of Newton: A Pedagogical Exercise for Understanding Conceptual and Historical Difference with Respect to Intra‐Religious Notions of Divinity

In this essay, I examine the following pedagogical question: how can we unlock students' mistaken notions that religious “traditions” are monoliths, and instead help them to recognize, puzzle over, and appreciate the complex multiplicity and vibrant set of doctrinal and ritual conversations that characterize religious traditions? More specifically, how can we teach students to recognize these differences with respect to a religion's notions of god? And how can we do so even when students are particularly stuck on, invested in, or trained to see homogeneity? In answer to these questions, I present an exercise that I have used in my World Religions courses. This exercise – which I call the “Council of Newton” (named for the building in which I first taught it) – is particularly effective because it helps students uncover and wrestle with this diversity at two levels: conceptually and historically.     

The dark side of cognitive illusions: When an illusory belief interferes with the acquisition of evidence‐based knowledge

Cognitive illusions are often associated with mental health and well‐being. However, they are not without risk. This research shows they can interfere with the acquisition of evidence‐based knowledge. During the first phase of the experiment, one group of participants was induced to develop a strong illusion that a placebo medicine was effective to treat a fictitious disease, whereas another group was induced to develop a weak illusion. Then, in Phase 2, both groups observed fictitious patients who always took the bogus treatment simultaneously with a second treatment which was effective. Our results showed that the group who developed the strong illusion about the effectiveness of the bogus treatment during Phase 1 had more difficulties in learning during Phase 2 that the added treatment was effective.