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’ Both methods have their strengths and weaknesses.

Qualitative approaches are good for further exploring the effects and unintended consequences of a program.

For numeric fields, there is a convenient way to validate a value range, but we want to select to run a custom validation script.

After the “Edit” button is clicked, a new window will open that allows us to edit the new script: This script also includes a check for an empty string, so that the user can wipe out a wrong string and start from scratch.

But secondary data are those which have already been collected. It is collected either by the investigator himself or through his agents.

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