The replacement effect: Repeating some items while replacing others

An informant questionnaire for detecting Alzheimer's disease: are some items better than others?

A decline in everyday cognitive functioning is important for diagnosing dementia. Informant questionnaires, such as the informant questionnaire on cognitive decline in the elderly (IQCODE), are used to measure this. Previously, conflicting results on the IQCODEs ability to discriminate between Alzheimer's disease (AD), mild cognitive impairment (MCI), and cognitively healthy elderly were found....

Caring for Yourself While Caring for Others.

Why do some children of short stature develop psychologically well while others have problems?

The present paper addresses the question: why do some children of short stature develop psychologically well while others have problems? Based on the work of Wallander and Varni, a model is presented to illustrate risk as well as resistance factors that are important for children of short stature. It is suggested that important risk factors for the psychological adjustment of children of short ...

Adopting ISO 14001: Why Some Firms Mandate Certification while Others Encourage It

Since 1996 hundreds of U.S. facilities have certified their environmental management systems (EMS) to ISO 14001. While EMS certification occurs at the facility level, little is known about how parent companies influence facility-level certification, and even less is known about what factors are more influential to the corporatelevel decisions than others. This study begins to understand these i...

Social Learning with Payoff Externality: Why Some Learn While Others Do Not

This paper studies a model of social learning with externalities and possibly with limited observability of past actions. Bayesian agents sequentially choose an action each, after observing the actions of a subset of preceding agents. These actions and a private signal, conditionally independent across agents, supply information about the common state of the world. Each agent’s payoff depends o...