<<Each month a printed purchase/usage diary is sent to the participating panel family. During the month the homemaker is requested to enter into the diary, each time the family shops, a record of products purchased and used by all members of the family (including the husband and children). Data typically includes date, brand name, type or flavor as appropriate, motivation, quantity, size, price paid, response to promotions, type of outlet, and who, when, how often, where, how much and for what purpose the product is consumed/used. '
Seems like a lot of work for a couple of movie tickets!
