A random digit dialing phone survey asked, how many of the last ten traffic lights you drove through were red.

Question

A random digit dialing phone survey asked, how many of the last ten traffic lights you drove through were red.

Of 880 respondents, 171 admitted at least one light had been red.

What is likely direction of the bias: More or fewer than 171 really ran a red light?

Why?

Answer 1

A random digit dialing phone survey asked, how many of the last ten traffic lights you drove through were red.

Would you brag or inflate your answer about running a red light? Or would you be hesitant to admit it?