Table 4.

Level of knowledge coding rule and example responses to open-ended survey question.

Code	0—No Knowledge	1—Partial Knowledge	2—Baseline Knowledge	3—Advanced Knowledge
Coding Rule	Response is blank or reflects no knowledge of key concepts.	Response suggests some correct knowledge of topic but does not identify key concept.	Response describes key concept and is otherwise correct.	Response describes key concept with higher complexity or details.
Example question: How is the use of energy derived from coal (electricity) and climate change related?
Example Response	“Climate Change is the Glaciers melting, Didn’t understand!”	“Dirty air and chemicals from burning coal”	“Increase in CO2 green house gases”	“Burning of fossil fuels is the main contributor of rapidly increasing atmospheric CO2”