Since 1987 Opinion has conducted at least 3 tests every month with sample sizes varying from 150 to 1500 interviews. Broadly we have conducted following types of central location tests-
i] Forced...
This includes
i] House to house interviews involving interviews with housewives, main earners, teenagers and children.
ii] Institutional interviews involving interviews with officers,...
Over last 13 years Opinion has handled on an average 15-20 groups per month. Our rigid field controls ensure that all operational details are looked in to. Groups are conducted among 1] Main earners...