Evaluators either need to adopt or adapt tools “off the shelf” or create new ones.
Either method can pose challenges: Tools that have been developed for one evaluation may not prove suitable for another, at least not without careful modification.
this site supports organizers of all initiatives where public participants are involved in scientific research.
Most evaluations require the use of a data collection tool—a survey or other data collection instrument.
Recall that a sample should be an accurate representation of a population, because the total population may not be available.
An instrument that is externally valid helps obtain population generalizability, or the degree to which a sample represents the population.
At the same time, creating new tools requires expertise in measurement and instrument design. When considering the use of an instrument, keep in mind the following: These sites provide access to tools and instruments useful for evaluating the wide range of outcomes addressed by informal STEM education experiences.
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Beginning in 2010, our team of researchers at the Cornell Lab of Ornithology set out to create a toolkit of resources for helping project leaders measure participant outcomes.
As part of this effort, the DEVISE project (Developing, Validating, and Implementing Situated Evaluation Instruments) developed a set of constructs and associated instruments to measure outcomes such as interest, motivation, self-efficacy, and skills.
Researchers chose which type of instrument, or instruments, to use based on the research question.
Examples are listed below: is the extent to which an instrument measures what it is supposed to measure and performs as it is designed to perform.