Using the quasi-experimental research study listed in your supplemental readings (Johnson & Meadows, 2010)
identify the design and the threats to design validity. In a narrative format, discuss how the researcher controlled the environment, equivalence of subjects and groups, treatment, measurement, and extraneous variables.
Johnson, R.A.,& Meadows, R.L. (2010). Dog-walking: motivation for adherence to a walking program. Clinical Nursing Research, 19(4), 387- 402.