Title: PSYCH 610 Week 3 Individual Assignment Week Three Homework Exercise Sample content: Week Three Homework Exercise Answer the following questions covering material from Ch. 6 & 7 of Methods in Behavioral Research: 1. What is reactivity? Explain how reactivity impacts measurement. Reactivity is defined as the conceivability that the presence of the onlooker will be able to influence peoples conducts (Carlson, 2011). Reactivity likewise affects the measurement by expanding the opportunity of measurement mistakes. It also changes validity as well as dependability of an experiment. 2. What are the key features of an experimental design, or