A pilot study is often helpful because it?

ایک پائلٹ مطالعہ اکثر مددگار ہے کیونکہ یہ؟

Permits a check of procedures with the possibility of revision when needed

Provides the research with ideas approaches and clues

Permits a preliminary testing of the hypothesis

All of the above

Explanation

A pilot study is often helpful because it "Permits a check of procedures with the possibility of revision when needed," "Provides the research with ideas, approaches, and clues," and "Permits a preliminary testing of the hypothesis."