The selection of a national random sample of teachers for experimental curriculum evaluation [microform] / Wayne W. Welch and Others
- Bib ID:
- 5188790
- Format:
- Book and Microform
- Author:
- Welch, Wayne W
- Online Version:
- https://eric.ed.gov/?id=ED015887
Broken link? let us search Trove , the Wayback Machine , or Google for you.
- Description:
-
- [Washington, D.C.] : Distributed by ERIC Clearinghouse, 1967
- 14 p.
- Summary:
-
Members of the evaluation section of harvard project physics, describing what is said to be the first attempt to select a national random sample of (high school physics) teachers, list the steps as (1) purchase of a list of physics teachers from the national science teachers association (most complete available), (2) selection of 136 names by a table of random numbers derived from ordinal numbering of the 16,702 listings for the continental U.s., (3) sending of a descriptive invitation to participate in experimental evaluation of the course (including a questionnaire to indicate willingness, reason for refusal, and information on teaching load, text used, etc.), (4) comparison of acceptors with non-acceptors (acceptors appeared more receptive to innovation), (5) assignment by random numbers of 46 teachers to the experimental group and 26 to the control group (attrition over the following 4 months reduced the experimental group to 36 and the control group to 21). Possible bias is discussed, leading to characterization of the population as "all high school physics teachers on the 1966 nsta list who did not make summer commitments more than 3 months in advance and who would not back out of the research agreement." cost and comparison with a volunteer group are also discussed. (af)
- Notes:
- May also be available online. Address as at 14/8/18: https://eric.ed.gov/
- Reproduction:
- Microfiche. [Washington D.C.]: ERIC Clearinghouse microfiches : positive.
- Subject:
-
- Control Groups
- Evaluation Methods
- Experimental Groups
- National Surveys
- Physics
- Program Costs
- Questionnaires
- Research Design
- Research Methodology
- Research Problems
- Science Curriculum
- Science Teachers
- Secondary School Teachers
- Selection
- Statistical Data
- Tables (Data)
- Harvard Project Physics National Science Teachers Association
- Available From:
- ERIC
- Copyright:
-
In Copyright
You may copy under some circumstances, for example you may copy a portion for research or study. Order a copy through Copies Direct to the extent allowed under fair dealing. Contact us for further information about copying.
Copyright status was determined using the following information:
- Material type:
- Literary Dramatic Musical
- Published status:
- Published
- Publication date:
- 1967
Copyright status may not be correct if data in the record is incomplete or inaccurate. Other access conditions may also apply. For more information please see: Copyright in library collections.
Request this item
Request this item to view in the Library’s reading room.
Feedback
Similar items
- The origin of creation, or, The science of matter and force [microform] : a new system of natural philosophy / by TRFAD
- Analysis of a course of lectures on natural and experimental philosophy ... [electronic resource] / by A. Walker
- The inspiration of science / George Thomson
- Fragments of science for unscientific people : a series of detached essays, lectures and reviews / by John Tyndall
- Wandlungen in den Grundlagen der Naturwissenschaft : acht Vortrage