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Full-Text Articles in Social and Behavioral Sciences
An Analysis Of The Hiskey Nebraska Test Of Learning Aptitute For Navajo Children With Suspected Learning Difficulties, Susan Louise Sawyer
An Analysis Of The Hiskey Nebraska Test Of Learning Aptitute For Navajo Children With Suspected Learning Difficulties, Susan Louise Sawyer
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The purpose of the study was to evaluate the appropriateness of the Hiskey Nebraska Test of Learning Aptitude as a measure of ability for Navajo students with suspected learning difficulties. Item analytic procedures were employed for the 61 students in the younger group (ages 5-10) and for the 57 students in the older group (ages 11-17).
Using Hoyt's analysis of variance routine, reliability estimates of .87 (younger group) and .81 (older group) were obtained. The majority of the items discriminated in the appropriate direction for both subtest and total test scores.
It was concluded that the Hiskey Nebraska Test of …
A Dynamic Optimization Model Of Energy Related Economic Planning And Development For The Navajo Nation, Hamid Beladi
A Dynamic Optimization Model Of Energy Related Economic Planning And Development For The Navajo Nation, Hamid Beladi
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
The Navajo reservation located in portions of Arizona, New Mexico and Utah is rich in low sulfur coal deposits, ideal for strip mining operation. Presently, the Navajo Nation has entered into extensive coal leases with several large companies and utilities. Contracts have committed huge quantities of Navajo coal for mining.
The present research has been directed to evaluate the shadow prices of Navajo coal and identify optimal coal extraction. An economic model of coal resource extraction over time has been structured within an optimal control problem has been formulated as a discrete dynamic optimization problem.
A comparison of the shadow …