An acre is how many square feet?

Words that express thoughts clearly tend to be what types of words?

A) Jargon B) Concrete words C) Strong, precise words D) Abstract words E) Nouns

When a researcher must communicate with respondents which choice of data collection method may be selected?

A) have person ask questions B) use a computer to assist or to directly ask questions C) allow respondents to answer questions themselves D) any of the above may be selected E) none of the above may be selected