Media Conversion Analysis and Instructional Design Considerations

Author(s):  
France Belanger ◽  
Dianne H. Jordan

In chapter two, we discussed the different variables that impact suitability for DL. Chapter three provided the capabilities and limitations of technologies that can be used for distance and distributed learning. The purpose of this chapter is to provide guidance on the major steps involved in a media conversion analysis. They include the initial screening for DL suitability, determining what portion of the course is suitable for conversion, selecting the appropriate media for conversion, determining the number of hours required for development, pricing the cost of development and maintenance, and doing a benefit/cost or return on investment (ROI) analysis. Before beginning the discussion on media conversion analysis, a life-cycle model and approach to DL projects are outlined.

2008 ◽  
Vol 98 (4) ◽  
pp. 1517-1552 ◽  
Author(s):  
Orazio Attanasio ◽  
Hamish Low ◽  
Virginia Sánchez-Marcos

This paper studies the life-cycle labor supply of three cohorts of American women, born in the 1930s, 1940s, and 1950s. We focus on the increase in labor supply of mothers between the 1940s and 1950s cohorts. We construct a life-cycle model of female participation and savings, and calibrate the model to match the behavior of the middle cohort. We investigate which changes in the determinants of labor supply account for the increases in participation early in the life-cycle observed for the youngest cohort. A combination of a reduction in the cost of children alongside a reduction in the wage-gender gap is needed. (JEL D91, J16, J22, J31)


2010 ◽  
Vol 2 (2) ◽  
pp. 165-193 ◽  
Author(s):  
Igor Livshits ◽  
James MacGee ◽  
Michèle Tertilt

Personal bankruptcies in the United States have increased dramatically, rising from 1.4 per thousand working age adults in 1970 to 8.5 in 2002. We use a heterogeneous agent life-cycle model with competitive lenders to evaluate several commonly offered explanations. We find that increased uncertainty (income shocks, expense uncertainty) cannot account quantitatively for the rise in bankruptcies. Instead, the rise in filings appears mainly to reflect changes in the credit market environment: a decrease in the transaction cost of lending and in the cost of bankruptcy. We also argue that the abolition of usury laws and other legal changes were unimportant. (JEL D14, E44, G21, G28)


2020 ◽  
Author(s):  
Oleg Malafeyev ◽  
Irina Zaitseva ◽  
Sergey Sychev ◽  
Gennady Badin ◽  
Ilya Pavlov ◽  
...  

Author(s):  
Boris Claros ◽  
Beau Burdett ◽  
Madhav Chitturi ◽  
Andrea Bill ◽  
David A. Noyce

Roundabout implementations at traditional intersections have been shown to be effective at reducing severe crashes. Roundabouts have also been implemented at interchange ramp terminals; however, limited research is available. In this study, 25 roundabout ramp terminal implementations were evaluated. The methodological approach consisted of Empirical Bayes for safety effectiveness and crash cost changes, crash type weighted distribution, crash rate analysis of bypass configuration, and cost of implementation. Roundabouts were effective at reducing fatal and injury crashes when replacing existing interchange diamond ramp terminals: 65% reduction for roundabouts replacing stop-controlled ramp terminals and 41% reduction for roundabouts replacing signal-controlled ramp terminals. Observed crash type weighted distributions are provided to visualize the frequency and location of crashes within roundabout ramp terminals for design considerations. Exit ramp and outside crossroad approaches with right-turn bypass showed significantly lower crash rates than designs without bypass. The crash cost analysis showed that roundabouts replacing diamond ramp terminals yielded crash cost savings of between $95,000 and $253,000 per site per year (69% to 54% decrease in crash costs). Considering crash costs savings only, the cost of implementation should be less than $1.9 million for a roundabout replacing a stop-controlled ramp terminal and less than $5.1 million for a roundabout replacing a signal-controlled ramp terminal to accomplish benefit-cost ratios greater than one for a service life cycle of 20 years. Costs are in 2019 dollars.


2001 ◽  
Vol 38 (1) ◽  
pp. 16-19 ◽  
Author(s):  
Betty E. Steffy ◽  
Michael P. Wolfe

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