How useful or informative do you think such tests are?

Is their use a reasonable business policy? Assuming that tests like those described are valid and reliable, are they fair? Explain.

At Christmas time, holiday shoppers dro p all sorts of things into the Salvation Army’s red kettles:
diamond rings, lottery tickets, casino chips—even Viagra.119 Most people, of course, put in coins and dollar bills. Some years ago, however, one of the Army’s local branches found that money also seemed to be disappearing out of its kettles. Worried about theft by its kettle workers, Army officials sought the assistance of Dr. John Jones, director of research for London House Management Consultants.