HSS 3101 Lecture Notes - Lecture 29: Internal Validity, Control Arm, Dependent And Independent Variables

• School: University of Ottawa
• Department: Health Sciences
• Course: HSS 3101
• Professor: Jason Steffener

Document Summary

Stronger external validity than traditional rct with individuals as the unit of ra and stronger internal validity than observational and quasi- experimental studies. Ra to encouragement (persuasive communication) to have the intervention or to select from a menu of options more closely mimics the delivery of preventive services in real-world settings [this increases external validity] Can reveal participants" decision-making process (i. e. , models real- world behavior of treatment choices) [this may demonstrate insight into adherence to healthy lifestyles] Researchers and community are partners in the research; community and individual preferences are considered. May provide a more equitable relationship between researcher and participant than mandated treatment assignment [the participant is actively involved] Internal validity may be lower than a traditional rct with individuals as the unit of ra [the researcher gives up some control] Need to collect extensive quantitative and qualitative data to. Key limitations measure intensity of and fidelity to implementation of intervention.