A Member of Your Market Research Team Conducted Tests of a New

Multiple Choice

A member of your market research team conducted tests of a new television advert with twenty different groups of consumers, in which they rated their satisfaction (on a ten point scale) with the advert and likelihood of purchasing the advertised product (on a five point scale) . He is worried about the familywise error rate across the tests, what advice would you give him.

A) Use a Cramer's V test
B) Use a Olive Dunn test
C) Use a Bonferroni Correction
D) Use a Field Correction