Job stress in university,corporate, and military personnel

The Job Stress Survey (JSS) was administered to large samples of university and corporate employees and senior military personnel. Differences in the perceived severity, frequency of occurrence, and overall level of occupational stress were evaluated for individuals working in these settings. Gender differences in job stress and the factor structure of the JSS were also evaluated. Two occupational stress factors were identified, Job Pressure and Organizational Support, which were remarkably stable for males and females and for individuals working in university, corporate, and military settings. Corporate employees reported higher levels of perceived severity of job stress than the other groups, whereas military personnel reported that they more frequently experienced almost all of the job stress events. No overall differences were found for the three groups in the JSS Job Stress Index.     

LOTTERIES AND THE TIME HORIZON

Abstract— People chose between hypothetical alternatives of (a) a million-dollar lottery prize and (b) a much smaller but certain amount of money When probabilities of winning the lottery were above about 1/100,000, subjects avoided risk, for example, a 1/100,000 probability of the million-dollar prize was chosen about as often as $700 for sure But at probabilities below 1/100,000, subjects sought risk, for example, a 1/1,000,000 probability of the million-dollar prize was chosen about as often as $9 for sure This crossover from risk aversion to risk seeking is predicted by Mazur's (1987) hyperbolic delay discount function with probability expressed as average delay due to strings of losses followed by a win, together with a time horizon limiting subjective delay     

Qoheleth and the Existential Legacy of the Holocaust

This article explores thematic parallels between the book of Ecclesiastes and the reflections and memories of Holocaust survivors. The three themes touched on find expression in the post-World War II existentialist literature which sought to respond to the incomprehensibility of the Holocaust: the role of extreme circumstances, (confrontation with) absurdity, and (particularly in relation to the legacy of the Holocaust) the individual struggle with, or against, death and fate. It is existentialist philosophy, then, that provides the categories for the comparison.
Although one cannot (indeed, should not) presume an experiential likeness between Qoheleth's narrative and the real suffering of Holocaust victims, Qoheleth's observations and lamentation about the absurdity of his own experience resonate a great deal with the (remembered) experience of the Holocaust's survivors.     

Effects of the menstrual cycle on vibrotactile sensitivity

Psychophysical thresholds for the detection of vibration delivered to the thenar eminence of the right hands of young males and females were measured every other day for 30–34 days. The frequency of the vibratory stimulus was either 15 or 250 Hz. The sinusoidal stimuli applied through a 3.0-cm² contactor were 700 msec in duration and had rise-fall times of 25 msec. Stimulus amplitude was measured with a calibrated accelerometer mounted on the moving element of the vibrator. Data were plotted as a function of successive days in the menstrual cycle. Thresholds for detecting the 15-Hz stimulus did not change significantly, whereas thresholds for detecting the 250-Hz stimulus varied significantly over the menstrual cycle. The 250-Hz threshold became progressively lower as subjects approached the onset of menstruation. After the onset of menstruation, the 250-Hz threshold gradually increased, reaching a maximum value approximately 12 or 13 days later. Soon after the 12th or 13th day of the cycle, the threshold again began to decline and continued to decline until the onset of the next menstrual cycle. The thresholds of women taking birth control pills did not change systematically over the testing period.     

The similarities between cognitive dissonance and guilt: Confession as a relief of dissonance

It is proposed that dissonance is similar to the feeling of guilt. If they are in fact analogous, and confession relieves guilt, then one implication is that confession would relieve dissonance. This experiment tested this prediction using a standard induced compliance paradigm. Forty-five undergraduate subjects were assigned to either a no-choice condition, a choice-confession condition, or a choice-no-confession condition. The results indicate that confession does relieve dissonance. Further, as predicted, a negative correlation was found between attitudinal shift and guilt. The implications of the findings concerning the mechanisms of confession are discussed.     

The relationship between treatment exposure times and changes in stuttering frequency during contingent stimulation

Four adult stutterers were exposed to 60 consecutive minutes of verbal contigent stimulation. In each session subjects spoke until a stuttering frequency stability criterion was met (baserate) followed by 60 min of exposure to the word wrong presented contingently upon each instance of stuttering. The data were analyzed according to changes in stuttering which occured following 20, 40, and 60 min of treatment exposure. The results revealed that stuttering frequency was reduced for all subjects during all three 20-min segments of the treatment condition. The only significant reductions in stuttering frequency, however, occured within the first 20 min of treatment.     

Changing expectations: A longitudinal study of community attitudes toward a nuclear power plant

Initial and 5-year follow-up interviews were conducted with 213 residents of the host community for a nuclear power plant. The purpose was to determine possible changes in attitudes toward the plant and expectations about potential outcomes associated with construction. Large negative changes in attitudes toward the plant were noted and were accompanied most notably by decreased expectations of positive outcomes. The structure of the expectations remained essentially stable over the 5-year period. Perceptions of hazards, community disruption, and economic benefits as measured early in construction and during peak construction were found to be the best predictors of acceptance of the nuclear plant. Initial expectations were found to predict overall attitude toward the plant 5 years later. Results were discussed in terms of implications for social impact assessment, large-scale community change, and the predictability of community attitudes toward nuclear power plant construction.     

A Bayesian random effects model for testlets

Standard item response theory (IRT) models fit to dichotomous examination responses ignore the fact that sets of items (testlets) often come from a single common stimuli (e.g. a reading comprehension passage). In this setting, all items given to an examinee are unlikely to be conditionally independent (given examinee proficiency). Models that assume conditional independence will overestimate the precision with which examinee proficiency is measured. Overstatement of precision may lead to inaccurate inferences such as prematurely ending an examination in which the stopping rule is based on the estimated standard error of examinee proficiency (e.g., an adaptive test). To model examinations that may be a mixture of independent items and testlets, we modified one standard IRT model to include an additional random effect for items nested within the same testlet. We use a Bayesian framework to facilitate posterior inference via a Data Augmented Gibbs Sampler (DAGS; Tanner & Wong, 1987). The modified and standard IRT models are both applied to a data set from a disclosed form of the SAT. We also provide simulation results that indicates that the degree of precision bias is a function of the variability of the testlet effects, as well as the testlet design.The authors wish to thank Robert Mislevy, Andrew Gelman and Donald B. Rubin for their helpful suggestions and comments, Ida Lawrence and Miriam Feigenbaum for providing us with the SAT data analyzed in section 5, and to the two anonymous referees for their careful reading and thoughtful suggestions on an earlier draft. We are also grateful to the Educational Testing service for providing the resources to do this research.