Title: TEST TO MEASURE THE KNOWLEDGE LEVEL OF FARMERS REGARDING SAFE USE OF PESTICIDES

Authors: Sukhmanpreet Kaur, Aamir Hamid Shah and Tariq Iqbal

Publisher: The President, Society of Extension Education Gujarat

Keywords: knowledge test, vegetable growers, pesticides, item analysis

Volume: 41

Issue: 2

Year: June 2026

DOI: https://doi.org/10.56572/gjoee.2026.41.2.0027

Abstract: A study was designed to develop a standardized test to measure the knowledge of vegetable growers. A preliminary test of Sixty Five knowledge items were initially administered to 30 vegetable growers for item analysis. Finally 39 knowledge items were included in the final format of the knowledge test based on difficulty index (30 to 80), discrimination index (0.30 to 0.75). The reliability of the knowledge test was measured with the help of testretest method and the reliability coefficient was found to be 0.841, which indicates that the knowledge test is reliable. Meanwhile, the correlation between odd and even set was found positive. The validity of the test was established on account of both "content validity" as well as "construct validity". Point bi-serial correlation coefficient was used to test the construct validity of the test. Content validity essentially involves the systematic examination of the test content to determine whether it covers a representative sample of the behaviour domain to be measured which is knowledge here. Accordingly, all possible statements, covering wide aspects of safe use of pesticides were collected.