Prospect theory analysis of guessing in multiple choice tests

The guessing of answers in multiple choice tests adds random error to the variance of the test scores, lowering their reliability. Formula scoring rules that penalize for wrong guesses are frequently used to solve this problem. This paper uses prospect theory to analyze scoring rules from a decision‐making perspective and focuses on the effects of framing on the tendency to guess. In three experiments participants were presented with hypothetical test situations and were asked to indicate the degree of certainty that they thought was required for them to answer a question. In accordance with the framing hypothesis, participants tended to guess more when they anticipated a low grade and therefore considered themselves to be in the loss domain, or when the scoring rule caused the situation to be framed as entailing potential losses. The last experiment replicated these results with a task that resembles an actual test. Copyright © 2002 John Wiley & Sons, Ltd.     

Getting Students to Choose to Do More Work: Evidence of the Effectiveness of the Interspersal Procedure

College students were exposed to two sets of mathematics assignments. For each set students were given an experimental and a control assignment. The control assignments contained 15 three-digit by two-digit target problems. The experimental assignments contained 18 similar target problems as well as six one-digit by one-digit multiplication problems interspersed after every third target problem. In the first assignment set, students were asked to work each assignment for 5 minutes. Although the experimental assignments contained more target problems, results showed that significantly more students chose the experimental assignment and rated it as less difficult and as requiring less effort to complete. In the second assignment set, students were asked to complete both assignments. Again significantly more students rated the experimental assignment as being less difficult and as requiring less effort to complete. Although more students chose the experimental assignment for homework, this difference was not significant. Discussion focuses on using the interspersal procedure to enhance students' perceptions of assignments and alter their choice behavior.     

Practice papers all power to the consumer? Complexity and choice in consumers' lives

This paper draws together selected insights from a range of projects, primarily the Future Foundation's ‘Complicated Lives’ research programme for Abbey National. Unless otherwise sourced, all findings in this paper are based on Complicated Lives 1 & 2 (2001, 2002) The author also draws on research sponsored by a range of clients including Ananova (the future of news), First Direct (e‐service monitor, nPower (drivers for online bill payment) as well as nVision's own Changing Lives ongoing programme of research. This paper is based on a chapter of a forthcoming book, Complicated Lives, due to be published in 2003. Copyright © 2002 Henry Stewart Publications.     

Work-life benefits and job pursuit intentions: The role of anticipated organizational support

The current study examined the impact of two work-life benefits, work schedule flexibility, and dependent care assistance, on applicants' intentions to pursue jobs with potential employers. The study also explored whether anticipated organizational support would mediate the relationships between these two work-life benefits and job pursuit intentions. Results indicated that although work schedule flexibility, dependent care assistance, and salary were all related to job pursuit intentions, only schedule flexibility, and dependent care were related to anticipated organizational support. Findings also indicated that anticipated organizational support fully mediated the effects of work schedule flexibility and dependent care assistance on job pursuit intentions. Findings are discussed in terms of the importance of organizational support as a mediating mechanism through which work-life benefits influence more distal outcomes, and in terms of implications for organizational recruiting strategies.     

Water can induce better spatial memory performance than food in radial maze learning by rats1

Abstract: Two experiments were carried out to test the differential effects of hunger and thirst on memory performance. In Experiment 1, two groups of rats were exposed to an original radial‐maze task and then to a 30‐min retention‐memory task. The food‐deprived group completed the original task more quickly than the water‐deprived group, but the thirsty group mastered the memory task more quickly than the hungry group (p < 0.01). In Experiment 2, deprivation conditions were changed from the original to the memory task. The food‐water group completed the memory task more rapidly than the water‐food group (p < 0.05). Thirst proved to constitute a more favorable condition for retention‐memory learning. The applicability of several theories is discussed.     

Differences in Creative Problem‐Solving Preferences Across Occupations

FourSight theory contends that individuals show preferences for the mental operations rooted in the creative process. The four fundamental preferences measured by FourSight are Clarifiers, Ideators, Developers, and Implementers. The present study examined the extent to which certain occupations reflect a proclivity for these four creative‐process preferences. Guided by Holland's theory of vocational choice, hypothesized relationships were formulated for the link between FourSight theory and 17 occupations. For example, it was predicted that those who work in finance would show a significant bias toward the Clarifier preference. Of the 17 hypothesized relationships between FourSight and occupation, statistical analysis of the FourSight preferences for 20,784 individuals showed support for 12 predictions and partial support for two of the hypothesized relationships. These findings clearly demonstrate that particular occupations engage specific creative‐process preferences. Future investigations might wish to examine the degree to which the interaction between work and creative‐thinking preferences predicts creative performance, satisfaction, stress, and turnover.     

Evaluating the effect of delay spacing on delay discounting: carry‐over effects on steepness and the form of the discounting function

Most delay discounting studies use tasks that arrange delay progressions in which the spacing between consecutive delays becomes progressively larger. To date, little research has examined delay discounting using other progressions. The present study assessed whether the form or steepness of discounting varied across different delay progressions. Human participants completed three discounting tasks with delay progressions that varied in the time between consecutive delays: a standard (increasing duration between delays), linear (equal duration between delays), and an inverse progression (decreasing duration between delays). Steepness of discounting was generally reduced, and remained so, following experience with the inverse progression. Effects of the delay progression on the best fitting equation were order‐dependent. Overall the hyperbola model provided better fits, but the exponential model performed better with data from the inverse progression. Regardless, differences in which model fit best were often small. The finding that the best fitting model was dependent, in some cases, on the delay progression suggests that a single quantitative model of discounting may not be applicable to describe discounting across all procedural contexts. Ultimately, changes in steepness of discounting following experience with the inverse progression appeared similar to anchoring effects, whose mechanism will require further study to delineate.     

The nanoeconomics of concurrent choice behavior

We introduce to behavior analysis a way of analyzing choice behavior that exploits recent developments in nanoeconomics, financial economics, and econometrics. A response return, modeled on an economic return, is the log differenced count of responses allocated to each of two alternatives during a short time window, compared with that in the immediately preceding window. The response return is a new dependent variable which offers a novel and useful way of looking at operant behavior, especially at the molecular level of analysis. The response–return series is a near‐instantaneous measure of an organism's dynamic preferences for each of two alternatives. Analyzing such a series requires time‐analytic techniques, including Auto‐Regressive Conditional Heteroskedastic (ARCH) models. We illustrate these techniques by analyzing choices between combinations of arithmetic and exponential variable‐interval schedules with pigeon subjects. All response–return series were well‐fitted by one of three ARCH‐family models. The fitted models were differentially sensitive to transition versus steady‐state data samples. The particular insights that the ARCH analyses offer are improved understanding of the effects of the instantaneous effects of reinforcers and their absence, of how the distribution of reinforcers in time affects choice, and of the differences between choice in transition and at steady state.     

‘Sometimes,it's not just about the food': The social identity dynamics of foodbank helping transactions

Food insecurity in developed countries has increased rapidly. Research has suggested that stigma may inhibit food-aid help-seeking, but has failed to determine how such barriers might be overcome. Adopting a social identity perspective, this study explored the processes involved in food-aid helping transactions and sought to identify conditions that facilitate positive helping outcomes. Interviews were conducted with 18 clients and 12 volunteers at two English foodbanks, and a theoretically guided thematic analysis was conducted. Two primary themes were identified: ‘Here to Help’ and ‘The Legitimate Recipient’. This article offers a distinct and novel contribution by applying a social identity perspective to foodbank helping transactions, thereby demonstrating how group dynamics and behaviours are integral to these interactions, and by moving beyond the typical ‘Social Curse’ focus on barriers to help-seeking to explore how such obstacles may be overcome. Suggestions for addressing stigma-laden helping transactions and promoting successful delivery of aid are provided.     

Intuitive Political Theory: People's Judgments About How Groups Should Decide

Societies must make collective decisions even when citizens disagree, and they use many different political processes to do so. But how do people choose one way to make a group decision over another? We propose that the human mind contains an intuitive political theory about how to make collective decisions, analogous to people's intuitive theories about language, physics, number, minds, and morality. We outline a simple method for studying people's intuitive political theory using scenarios about group decisions, and we begin to apply this approach in three experiments. Participants read scenarios in which individuals in a group have conflicting information (Experiment 1), conflicting interests (Experiment 2), and conflicting interests between a majority and a vulnerable minority who have more at stake (Experiment 3). Participants judged whether the group should decide by voting, consensus, leadership, or chance. Overall, we find that participants prefer majority‐rule voting over consensus, leadership, and chance when a group has conflicting interests or information. However, participants' support for voting is considerably diminished when the group includes a vulnerable minority. Hence, participants showed an intuitive understanding of Madison's concerns about tyranny of the majority.