While it is common to see correlational studies in social science research, this study offers another perspective on how to launch a study grounded in experimental design. This example study was part of the author’s Phd Dissertation at Texas A&M University. The research inquiry was to assess whether outdoor recreation programs and/or park interpretation programs influence park visitors’ environmental concern. Data were collected through an experimental design. Two hundred forth participants were randomly assigned to eight groups of activities (photography, photography with interpretation, birding, birding with interpretation, motorcycling, motorcycling with interpretation, motor boating, and motor boating with interpretation). While nature photography and birding were considered as appreciative recreation, motorcycling and motor boating were considered as consumptive recreation. Results suggest that participants’ environmental concern is enhanced when recreation is joined with interpretation services.