Purdue Engineering Education PhD Program, West Lafayette, IN
(Just one Purdue engineering education Ph.D
Other possible limitations include a potential bias regarding PLTW and EPICS High. According to researchers must acknowledge potential biases within the final report of the study. The researchers acknowledge that a potential bias could exist regarding both PLTW and EPICS High due to the fact that the researchers work within an engineering/ technology teacher program that provides undergraduate students with certification in PLTW courses and the fact that EPICS High was created by Purdue engineering education faculty. To help ensure that such biases did not taint research findings, the researchers implemented methods such as Merriam’s observational elements guide (2001). The observational elements guide provided researchers with guiding questions that required reflection on a variety of factors in order to maintain an objective perspective as the researcher collected observational data. The researchers also use methods to provide multiple perspectives and multiple forms of data. Finally, researchers used multiple raters on the observational protocol transfer problem session to maintain consistent and reliable data collection. These are sound research methodologies that can help to ensure an objective data collection process.
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