A researcher developing a questionnaire becomes aware of an interesting additional relationship that could be investigated at very little cost and effort by adding an additional item to the questionnaire. He knows that this is not vital to his present research purpose. He should
A) investigate it to a limited extent.
B) forget it.
C) evaluate the cost.
D) investigate it carefully.
E) investigate it, as this is likely to reduce sampling error.

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The Answer of A researcher developing a questionnaire becomes aware of an interesting additional relationship that could be investigated at very little cost and effort by adding an additional item to the questionnaire. He knows that this is not vital to his present research purpose. He should
A) investigate it to a limited extent.
B) forget it.
C) evaluate the cost.
D) investigate it carefully.
E) investigate it, as this is likely to reduce sampling error.

A Researcher Developing a Questionnaire Becomes Aware of an Interesting