Table I Philosophical issues
Percent agree Percent disagree Mean
Attitudinal dimensions 1993 2004 1993 2004 1993 2004 T-value
1. Relationship unique, not result of advertising 68.7 51.9 16.0 33.7 5.18 4.37 6.50 *
2. Existing information is inadequate 23.0 34.0 61.0 51.9 3.18 3.55 1.60
Notes: Neutral responses are not shown in the table, 1993 n ¼ 243, 2004 n ¼ 106; *Indicates significant differences at the 0.05 level of significance