| Autor: |
George W. Wardlow, J. A. Davis, Donald M. Johnson, Don W. Edgar, Clayton W Sallee |
| Rok vydání: |
2010 |
| Předmět: |
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| Zdroj: |
Applied Engineering in Agriculture. 26:937-941 |
| ISSN: |
1943-7838 |
| DOI: |
10.13031/2013.34931 |
| Popis: |
A 2-h educational program on biodiesel production, quality, performance, and emissions was developed and delivered to students (N = 199) in 14 classes at eight public secondary schools. The program was conducted over two days in each class and consisted of a lecture-discussion (Day 1) and an engine performance demonstration and discussion (Day 2). A pre-test post-test design was used to measure changes in students' knowledge and perceptions of biodiesel as a result of the educational program. Students' knowledge of biodiesel increased significantly (p < 0.0001), with post-test knowledge scores increasing 107% relative to pre-test knowledge scores (61.5% vs. 30.1% correct). Students' initial perceptions of biodiesel were fairly positive (pre-test mean =3.84 on a 1-5 scale) and did not significantly (p = 0.0941) increase as a result of the educational program (post-test mean = 3.95). Students were positive toward both the lecture-discussion and engine demonstration components of the educational program; however, they were significantly (p < 0.0001) more positive toward the engine demonstration. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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