Types of Data. Data collected as evidence of teacher practice may be quantitative, qualitative, or a combination of both. Quantitative data includes frequencies, distributions and other counts or tallies. For example the observer could use a checklist to tally how many questions were asked of children in the front row or children who had their hands raised versus not. The evaluator might also chart the types of questions asked (higher versus lower levels). Qualitative data can include scripted notes detailing patterns of activities, vocabulary used, and events observed. In both cases accuracy is essential to ensure the credibility of the process and the evaluator.
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Sources: Negotiated Agreement, Negotiated Agreement