framed in a cognitive approach to task-supported l2 vocabulary learning, the present study used a pedagogical approach to investigate the relative effectiveness of tasks with different involvement loads on the vocabulary knowledge of iranian efl learners. the goal was to investigate the way that the construct of involvement load is related to the input hypothesis (krashen, 1985) and the output ...

We taught 3 children with autism to raise a hand or keep both hands down depending on their status (e.g., having heard a target word, possessing a specific item) using modeling, prompting, and reinforcement. All 3 children acquired accurate hand-raising skills in response to progressively more difficult discrimination tasks during group instruction. The implications for preparing children for g...

Researchers have obtained conflicting results about the role of prosocial motivation in persistence, performance, and productivity. To resolve this discrepancy, I draw on self-determination theory, proposing that prosocial motivation is most likely to predict these outcomes when it is accompanied by intrinsic motivation. Two field studies support the hypothesis that intrinsic motivation moderat...

Although core self-evaluations have been linked to higher job performance, research has shown variability in the strength of this relationship. We propose that high core self-evaluations are more likely to increase job performance for other-oriented employees, who tend to anticipate feelings of guilt and gratitude. We tested these hypotheses across 3 field studies using different operationaliza...

This paper investigates mechanisms for the private provision of a public good which utilize competition to incentivize contributions. Theory predicts that “all-pay” competition is particularly effective for fundraising. Within this class of mechanisms different types of lotteries and all-pay auctions are analyzed and ranked. Four all-pay competition mechanisms are then examined in a laboratory ...

BACKGROUND Leadership is critical to making changes at multiple levels of the social ecological model, including the environmental and policy levels, and will therefore likely contribute to solutions to the obesity epidemic and other public health issues. The literature describing the relative leadership styles and strengths of women versus men is mixed and virtually all research comes from sec...

The current study investigated the effectiveness of genre-based instruction on the development of EFL learners’ writing skills. Participants were 34 undergraduate students majoring in textile engineering at an Iranian state university, and they had enrolled in the English for specific academic purposes course. Participants were taught how to write 4 types of business letters, highlighting the p...

Since its introduction to EAP theory in the 1980s, the concept of genre has proven to be a rigorous theoretical construct for a deeperunderstanding of the nature of academic discourse. However, the inherent potential of this concept as a means of classifying and categorizing academic texts has also given rise to what we have called “the misconception of homogeneity”. Criticizing this misconcept...

This paper aims to contribute to the understanding of the factors that determine fundraising and investment in the private equity market in Europe. These are analysed separately, since the lags faced in this activity determine the existence of two separate markets. As a result, private equity institutions deal with different agents, namely investors (fundraising) and firms (investment), whose l...

This paper provides a summary of what is known from social science research about the effects parents have on the donations of their children. It then goes on to summarize two on-going research projects. The first project provides estimates of the strength of the relationship between the charitable giving of parents and that of their adult children. The second provides estimates of the effect o...