This study explores the effects of Interferon-β characteristics such as country of origin, injection frequency and method, monthly cost, efficacy, and side effects on multiple-sclerosis patients’ willingness to pay. For this purpose, MS patients with a history of using Interferon-β were studied from the three major Isfahan MS centers. Choice sets were designed with a combination of attributes a...

Background and Purpose: Adolescence is considered as one of the most critical life periods since adolescents are being exposed to a variety of potential stimuli, whose inappropriate response to such stimuli would prevent their proper performance in society. The present study aimed to investigate the effectiveness of choice theory-based group training on cognitive emotion regulation and parent-c...

A common problem in estimation of discrete choice models is that the complete choice set is very large. A good example is supermarket consumer goods, like breakfast cereal, where there are often a hundred or more varieties (SKUs or UPCs) to choose from. In that case, estimation of complex discrete choice models where choice probabilities have no closed form can be very computationally burdensom...

OBJECTIVE Most children do not meet the recommended intake of vegetables. Variety was identified as a potential factor to increase children's intake of these foods, as it was shown that variety was effective in improving meal composition in adults. Because younger children are suggested to be more responsive to internal satiation signals than to external food-related cues compared with adults, ...

The complexity of planning tasks have increased over the past decade. There is relatively poor understanding what the implications are of increased task complexity in planning and scheduling operations. Previous work in the behavorial sciences have investigated the concept of cognitive load, addressing both task complecity and task workload or stress, and have concluded that decision makers ten...

Annually, many women become pregnant worldwide; however, pregnancy and childbirth is not a pleasant event for all them. In fact, more than 90% of maternal anxiety could be related to the delivery process. It should be noted that delivery is also a stressful event that sometimes, due to different reasons and in order to avoid its potential hazards which could threaten the lives of mother and bab...