A monetary gratuity's effect on the return rate (RR) of a mail survey was studied. Half of the surveys mailed to 507 librarians in Arizona included a 1.00 dollar gratuity. The RR was 80% among those receiving the gratuity and 59% among controls. A survey's RR and consequent validity may be improved by including a gratuity. (SLD)

Multiple matrix sampling (MMS) as a data collection strategy was examined, and rates of response from 307 public school principals in Virginia were compared when subgroups of items were administered versus an entire instrument. MMS was demonstrated as a viable and reasonable procedure when the mail questionnaire consists of a large number of pages…

Will a combination of lecture plus teaching demonstrations produce better learning than when equivalent information is presented through lecture alone? The present field experiment directly addressed this question. (Author)

The purpose of the study was to determine what relationships existed among the personality of instructional supervisors as reflected in a disbelief-belief system and measured by the Rokeach Dogmatism Scale and the tasks they performed and preferred to perform. (Editor)

This study is an attempt to provide organized and relevant objective evidence which can be used to improve student decisions. (Author)

A mail survey of 125 former teacher education students was conducted to examine subjects' perceptions of and responses to the survey. The effects of techniques thought to motivate mail survey participation on responses and potential respondent bias were examined. (TJH)

The goals of this study were twofold: 1.) the development and field testing of a behavior rating schedule for verbal and nonverbal classroom behaviors by teaching personnel and learners; 2.) descriptive data on the relationship among verbal and nonverbal classroom behaviors by teaching personnel and learners. (Author/RK)