A study with an exceptionally high degree of internal validity conducted with Native Alaskan female adolescents who have recently been sexually abused concludes that an intervention is effective in...

A study with an exceptionally high degree of internal validity conducted with Native Alaskan female adolescents who have recently been sexually abused concludes that an intervention is effective in preventing substance abuse among its participants. Explain how this study can have little external validity from one perspective, yet a good deal of external validity from another perspective—depending upon the target population of the practitioners who are utilizing the study as a potential guide to their evidence-based practice.