This review describes Alaska's economic boom of the early 1980s, the current recession, and economic projections for the 1990s. Alaska's economy is largely influenced by oil prices, since petroleum revenues make up 80% of the state government's unrestricted general fund revenues. Expansive state spending was responsible for most of Alaska's…

Computerized science simulations were employed by high school biology students in an attempt to enhance their problem-solving skills. The simulations were administered under unguided (discovery learning) and guided (guided discovery learning) conditions while a control group received no simulations. To ascertain the effectiveness of the…

Numerous studies suggest that field experiences focus student attention on short-term survival strategies; they do not provide a systematic investigation of alternative theories of learning and instruction. Students attend to management techniques but do not develop a more reflective approach to instruction. If this is so, students at different…

This study examined the science process skill of prediction problem solving using naturalistic research methodology and information-processing theory. The think-aloud interview led to the identification of several specific program exploration and prediction behaviors. A total of 14 high school biology students made predictions concerning the…

Two optimalization models for the construction of tests with a maximal value of coefficient alpha are given. Both models have a linear form and can be solved by using a branch-and-bound algorithm. The first model assumes an item bank calibrated under the Rasch model and can be used, for instance, when classical test theory has to serve as an…

A reduction in agricultural activity in a rural farming community will result in reduced activity in almost every sector of the local economy. The result may be measured in loss of employment and income. This report provides a method to estimate such economic impacts with a minimum of data collection and manipulation. Most of the input data…

A model of how automated and controlled processing can be mixed in computer simulations of problem solving is proposed. It is based on previous work by Hunt and Lansman (1983), who developed a model of problem solving that could reproduce the data obtained with several attention and performance paradigms, extending production-system notation to…

A normally distributed data set of 1,000 values--ranging from 50 to 150, with a mean of 50 and a standard deviation of 20--was created in order to evaluate the bootstrap method of repeated random sampling. Nine bootstrap samples of N=10 and nine more bootstrap samples of N=25 were randomly selected. One thousand random samples were selected from…

This paper defines, develops, and displays a mathematical modeling formulation for exploring decisions available to the higher educational administrator in evaluating discrete educational program budgets (instructional, service, and administrative) for possible future funding alternatives. Complex budget reduction strategies can be…

An approach to gathering information on tenure ratios and the use of an uncomplicated computer planning model are discussed. The approach employs the Interactive Financial Planning System (IFPS) developed by EXECUCOM. The IFPS computer simulation system can be used by administrators with minimal technical knowledge. Information required to…

This article describes how students learn and experience the excitement of science by actively participating in the MarsLink Space Mission, an educational component of the National Aeronautics and Space Administration's (NASA) Mars Missions. This Mission has been made possible by Space Explorers, Inc., in collaboration with NASA. In the…

Analysis of errors children make is modeled both with and without computers. Patterns of thinking are traced for a fifth grader, with the discussion focused on getting clues for remedial instruction by analyzing the dialog. (MNS)

Described is a unit, SAMPLING, which focuses on developing student understanding of probability and data collection for junior high school students. Activities in SAMPLING incorporate physical materials, simple computer simulations, surveys of subjective data, computer simulations of complex situations, and a culminating activity requiring the…

Presents a model for building a concept-oriented computer simulation which involves five steps: (1) topic selection and resource gathering; (2) developing objectives and lesson activities; (3) selecting and formulating simulation factors; (4) program coding and debugging; and (5) developing student worksheets. Students act as tax advisors in the…

Describes (in separate articles): computer simulations in science education; how junior high school students revised an experiment; a framework for assessment in science; physics, relevance, and understanding; a science module for a sixth form general studies course; and assessment of providing science education for the 16-19 age group. (JN)