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Roberts, Dennis M.; Glynn, Shawn M. – Calculators/Computers Magazine, 1978
Three calculation methods were compared in solving problems involving frequency distributions, manual, basic calculator, and advanced calculator. Calculators were more efficient but there was no difference in calculator type. (MP)
Descriptors: Calculators, College Mathematics, Computation, Educational Research
Roberts, Dennis M.; Glynn, Shawn M. – Calculators/Computers Magazine, 1978
Statistical problems were used to test the hypothesis that calculators facilitate problem solution by saving time and increasing accuracy. Manual, basic machine and advance machine methods were used. (MP)
Descriptors: Attitudes, Calculators, College Mathematics, Computation
Roberts, Dennis M.; Fabrey, Lawrence – Calculators/Computers Magazine, 1978
Investigated were the effects on computation performance of amount of prepractice and type of calculator, when students were told to work very fast vs very accurately. (MP)
Descriptors: Attitudes, Calculators, College Mathematics, Computation
Roberts, Dennis M.; And Others – Calculators/Computers Magazine, 1978
Solving statistical problems using a calculator with sophisticated features was compared to solving the same problems by hand. The calculator group was more accurate and took far less time. (MP)
Descriptors: Attitudes, Calculators, College Mathematics, Computation
Roberts, Dennis M.; Glynn, Shawn M. – Calculators/Computers Magazine, 1978
The study reported is the first in a series of investigations designed to empirically test the hypothesis that calculators reduce quantitative working time and increase computational accuracy, and to examine the relative magnitude of benefit that accompanies utilizing calculators compared to manual work. (MN)
Descriptors: Calculators, College Students, Computation, Educational Research
Fabrey, Lawrence J.; Roberts, Dennis M. – 1981
One hundred twenty-eight undergraduates were randomly assigned to one of four treatment conditions formed by crossing two levels of task difficulty (computationally easy or difficult problems) with two modes of calculation (solving by hand or calculator). When solving problems by hand, there was a large increase in state anxiety between easy and…
Descriptors: Anxiety, Calculators, College Mathematics, Difficulty Level
Download full textGeisinger, Kurt F.; Roberts, Dennis M. – 1978
A 30-item survey was developed to assess several dimensions of attitudes about calculators. Reliability and validity data were gathered on students in a college statistics course. Based on N = 135, coefficient alpha was .874. Factor analyses identified 3 interpretable factors: trustworthiness of calculators, usefulness, and educational value.…
Descriptors: Attitude Change, Attitude Measures, Calculators, College Mathematics
Peer reviewedRoberts, Dennis M. – Review of Educational Research, 1980
Studies concerning the impacts of electronic calculators on mathematics-related achievement and attitudes were reviewed. Results showed support for the computational benefits due to calculator use, but support for conceptual benefits was minimal. Hypothesized changes in general attitudes toward mathematics for those using calculators was…
Descriptors: Academic Achievement, Calculators, Computation, Concept Formation
