An experiment is reported in which subjects worked with an interactive videodisk program about cheese making on the basis of the same set of instructional objectives but in different experimental conditions with respect to learner control. The purpose of the study was to investigate the relationship between learnercontrolled or program-controlled length of video segments and test performance on...

The purpose of this report is to present the results of analysis of actual glucosamine and/or chondroitin contents of several such products in the market place and to determine if they significantly deviate from their label claim. A total of fourteen products containing glucosamine sulfate and nine products containing chondroitin sulfate were evaluated. The amounts of glucosamine and chondroiti...

The purpose of this report is to present the results of analysis of actual glucosamine and/or chondroitin contents of several such products in the market place and to determine if they significantly deviate from their label claim. A total of fourteen products containing glucosamine sulfate and nine products containing chondroitin sulfate were evaluated. The amounts of glucosamine and chondroiti...