... are often overlooked despite their importance in identifying cause-effect relationships. The fourth was to propose constructive recommendations to help to increase validity measures and obtain precise outcomes in experimental design studies. Experiment Mediator Moderator Causality...

... research is hardly realized in the hospitality and tourism literature because hospitality and tourism researchers are unfamiliar with experimental design. Another potential reason for this condition is the difficulties in soliciting non-student samples to participate in experiments, while student samples...