team 3 ken ,
it seems that there may be an internet bias as well ( more affluent
and educated households are on - line ) .
one solution : develop a control group . arm - twist clerical
employees of the school to fill out the questionnaire
and also ask them to provide the questionnaire to their friends and families .
vince
team 3
ken ,
it seems that there may be an internet bias as well ( more affluent
and educated households are on - line ) .
one solution : develop a control group . arm - twist clerical
employees of the school to fill out the questionnaire
and also ask them to provide the questionnaire to their friends and families .
vince