Comments on a journal article that suggests that educational statistics may be compared even in cases where different experimental units are used in the analyses. (MLH)

Comments that a previously published educational research article did not include sufficient background information about previous research. (MLH)

Reviews Piaget's theory of cognitive development and discusses how science concepts can be taught to secondary school students at different cognitive levels. (MLH)

Forty-five children, ages nine through eleven, were divided into control group and experimental groups that read or wrote hunches concerning a discrepant event involving sliding blocks. Those who generated hunches were shown to learn more in subsequent inquiry behaviors designed to explain the discrepant event. (MLH)

Fifteen Australian ninth-grade science classes used Australian Science Education Project (ASEP) curriculum materials with one of three levels of teacher structuring. Videotaped classes were analyzed for student and teacher behaviors. Concludes that more structuring results in more cognitive activity, more experimentation, and less task-irrelevant…

Two British elementary classes were taught chemistry by either Scheme A, involving the idea of chemical reactions as combination or decomposition, or Scheme B, the Nuffield inductive method utilizing heat and weight changes. Test results showed that Class A performed significantly better. (MLH)

Students from 84 biology, 113 chemistry, and 41 physics classes drawn from midwestern states completed the Learning Environment Inventory and the Science Attitude Inventory. One out of ten LEI scales predicted attitude scores of biology and chemistry students, and none was found for physics students. (MLH)

Preservice physics teachers in a British university completed a word association test by supplying five physical quantities which they associated with a number of electromagnetic stimulus concepts. Gives analysis of concept linking as it may occur in the students' cognitive structures. (MLH)

Describes how student responses to 26 bipolar adjectives describing laboratory studies are used at a New Zealand university to modify the content of laboratory experiments in physics. (MLH)

Studied classroom behaviors and conservation ability of elementary school science students taught by either Student-Structured Learning in Science (SSLS) or Teacher-Structured Learning in Science (TSLS). Reports on how behavior of conservers and nonconservers differs in SSLS and TSLS with respect to observing, following directions, and inventing…

Achievement scores of Israeli high school students using Biological Sciences Curriculum Study (BSCS) materials were shown to be significantly higher than those for students using another curriculum. (MLH)

A study of 508 secondary teachers of biology, physics, chemistry, earth science, or life science shows that teachers who use new curricula have more favorable attitudes toward inquiry strategies and that years of experience in using new programs is positively related to more favorable attitudes toward inquiry strategies. (MLH)

Elementary school science students taught by preservice teachers trained to ask observation and classification questions were administered an attitude measure. Results showed a significant difference only on a frustration measure, with the experimental group exhibiting more frustration than a control group. (MLH)

A sample of 108 eight-grade students using Intermediate Science Curriculum Study (ISCS) were tested with four Piagetian tasks: two tasks were related to ISCS concepts, two were not. Concludes that no students were formal operational, most were concrete operational, and most performed better on the non-ISCS related tasks. (MLH)

A total of 979 subjects from grades four, five, and six of 12 randomly selected urban and nonurban schools in Nigeria were administered an instrument to test their knowledge of 16 scientific concepts. Results showed that the children acquired knowledge incidentally and that the urban children scored higher. (MLH)