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Jenkins, Evan – Compact, 1973
Looks at the arguments for and against education vouchers and compares a recent New Hampshire voucher program with an earlier voucher experiment in California. (DN)
Descriptors: Educational Economics, Educational Experiments, Educational Finance, Educational Vouchers
Peer reviewedSparck Jones, K.; Van Rijsbergen, C. J. – Journal of Documentation, 1973
Substantial alterations to a system often have little or no effect on particular collections. This may be due to poor separation of relevant and non-relevant documents. The paper presents a procedure for characterizing this separation, which can show whether proposed modifications of the base system are likely to be useful. (8 references)…
Descriptors: Automatic Indexing, Classification, Cluster Analysis, Databases
Sparck Jones, Karen – Information Storage and Retrieval, 1973
Retrieval performance with automatic term classifications for three test collections has been variable. This paper attempts to discover why. The real difference between the collections is in the separation of relevant from non-relevant documents. The separation is so poor that classification cannot be expected to succeed. (14 references)…
Descriptors: Automatic Indexing, Classification, Cluster Analysis, Databases
Peer reviewedJoyce, L. S. – School Science Review, 1973
Ten laboratory exercises on optics are described to clarify concepts involving point objects and converging lenses producing real images. Mathematical treatment is kept to a minimum to stress concepts involved. (PS)
Descriptors: Instruction, Instructional Materials, Laboratory Experiments, Optics
Harris, Richard J.; Brewer, William F. – Journal of Verbal Learning and Verbal Behavior, 1973
Based in part on an M.A. thesis presented to the University of Illinois by Mr. Harris; deixis refers to those words which have a demonstrative or pointing function, e.g., the pronouns this'' or that''. (DD)
Descriptors: Adverbs, Cognitive Processes, Concept Formation, Distinctive Features (Language)
Peer reviewedLehiste, Ilse – Glossa, 1973
Revised version of a paper presented at the December 27, 1972 meeting of the Linguistic Society of America in Atlanta, Georgia; research supported by the National Science Foundation. (DD)
Descriptors: Acoustic Phonetics, Ambiguity, Experiments, Intonation
Peer reviewedDurbin, Marshall; Micklin, Michael – Linguistics, 1973
Research supported by a Faculty Research Grant from the Social Science Research Council. (DD)
Descriptors: Distinctive Features (Language), Experiments, Phrase Structure, Semantics
Peer reviewedMcCarthy, Francis W. – Science and Children, 1973
Descriptors: Electricity, Elementary School Science, General Science, Instructional Materials
Peer reviewedShankland, R. S. – American Journal of Physics, 1973
Discusses Einstein's views on the role of Michelson-Morley, Fizeau, and Miller experiments in the development of relativity and his attitude toward the theories of new quantum mechanics. Indicates that Einstein's opposition to quantum mechanics is beyond dispute. (CC)
Descriptors: Attitudes, Physics, Quantum Mechanics, Relativity
Peer reviewedMcGarry, Joseph P. – School Science and Mathematics, 1973
Descriptors: Biological Sciences, Chemistry, Laboratory Experiments, Physical Sciences
Peer reviewedOsgood, Charles E.; Richards, Meredith Martin – Language, 1973
Descriptors: Cognitive Tests, Diagrams, English, Experiments
Peer reviewedBender, M. L. – Language Sciences, 1973
Reviews theories of language origin with particular reference to Morris Swadesh's The Origin and Diversification of Language'', Chicago: Aldine-Atherton, 1971. (RS)
Descriptors: Animal Behavior, Anthropology, Diachronic Linguistics, Evaluation
Peer reviewedBarik, H. C. – Language Sciences, 1973
Based on an unpublished doctoral dissertation, Department of Psychology, University of North Carolina at Chapel Hill, 1969. (RS)
Descriptors: Computational Linguistics, English, French, Interpreters
Peer reviewedHollien, Harry; And Others – Journal of Phonetics, 1973
Research supported by a grant from the National Institutes of Health. (DD)
Descriptors: Acoustics, Articulation (Speech), Data Analysis, Diagrams
Peer reviewedHughes, Will J. – School Science and Mathematics, 1972
Descriptors: Chemistry, Equipment, Experiments, Laboratory Equipment
