Discuss each of the different type of validity as it applies to a measurement instrument such as the Perceived Stress Scale (http://www.psy.cmu.edu/~scohen/PSS.html). Discuss the face validity and the construct validity of this measure.
David Kennedy, professor at the John Jay School of Criminal Justice in New York, wrote: “In most cities there is a population of very high-rate,
David Kennedy, professor at the John Jay School of Criminal Justice in New York, wrote: “In most cities there is a population of very high-rate, low-level repeat offenders. There’s a heavy overlap between these folks, and drug and alcohol problems, [and] mental illness. If what we were doing was