IMPLEMENTATION #1. In an effort to improve trust in doctors at my local hospital, I start a weekly meet-your-doctors Q&A session. I randomly invite half of the patients at my hospital to attend these weekly sessions. The other half are not invited and are not eligible to attend. They are my control group. I administer a trust-in-doctors measure to all patients at the hospital at the conclusion of the weekly Q&A sessions to compare levels of trust between groups. Because I have access to patient files, I can identify which of the patients at the weekly meetings and which of the patients in my control group had a pre-existing mental illness that was known to the hospital. This allows me to compare the efficacy of these weekly meetings separately for people with and without a diagnosed mental illness.
Identify the design type Briefly explain why you think this study is the design you think it is.
True experiment
Person by treatment quasi-experiment
Cross-sectional differential
Cross-sectional correlational
Cross-sequential
Natural experiment