15 Feb A researcher wants to assure the data collected through action research to solve the problem of decreased productivity in their school is valid and trustworthy. What is the best wa
A researcher wants to assure the data collected through action research to solve the problem of decreased productivity in their school is valid and trustworthy. What is the best way for the researcher to confirm the validity of the data?
A. Use multiple data sources to triangulate the data.
B .Retest using the same data source multiple times.
C. Have two raters/observers assess the same participants.
D. Use different versions of a data source that measures the same thing.
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