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This posting compares and contrasts data gathering assessment tools and how each can be used in qualitative and quantitative educational research studies. Which ones are most effective and why? Is it easier to establish reliability and validity with certain instruments? Why? How do you train evaluators to use each instrument?

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As you compare and contrast these data gathering assessment tools and how each can be used in qualitative and quantitative educational research studies, please apply some of these ideas for brainstorming:

First, observations offer benefits for educators such as immersion in the field or with materials; they also promote authenticity. Personal interviews also encourage higher response rates as opposed to the other forms. They also allow researchers to gain or provide clarification for questions or responses, therefore attempting to eliminate ambiguity.

The disadvantages involve time and costs. Due to their face to face nature, they also offer no anonymity, making the ability to answer freely and honestly quite challenging. Observations further present the downfall that they are highly subjective on the part of the observer. Another negative is the ...

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