Independent variable | Tangibility | Reliability | Responsiveness | Assurance | Empathy |
Global | X | X | O | O | O |
Socioeconomic Status A B C+ C C− D+ D E |
X O X X X X X X |
X O O X X X X X |
O O O O O O O O |
O O O O X X X X |
O O O O X X X X |
Gender Female Male |
X X |
X X |
O O |
X O |
O X |