International Journal of Agriculture Extension and Social Development

author(s)
L Arun and R Senthilkumar

abstract
The current study was envisioned to develop and standardize a scale for gauging dairy farmers’ knowledge of the disaster. Based on the rationale and differentiation of well-knowledgeable dairy farmers from ill-informed dairy farmers, 54 items widely covering each facet of disaster were constructed. After carrying out the relevancy test with the inputs from the extension experts, 22 items were prudently chosen. The attained scores from each 22 items were used for item analysis encompassing item difficulty index, discrimination index and point biserial co-relation. The knowledge items with a difficulty index ranging from 0.25 to 0.75, discrimination index above the score of 0.2 and point biserial correlation value at - 5% significance were selected for the knowledge scale. A total of 12 knowledge items were selected for the construction of the final scale. Cronbach alpha was used for the measurement of the reliability. Cronbach’s alpha score was excellent at 0.824, which is very high and specifies strong internal consistency amongst the 12 selected knowledge items. The established knowledge test was found to be a very constant and trustworthy measurement.