1. What is the primary purpose of utilizing a double-blind procedure in psychological research? - A) To ensure that the participants act naturally - B) To prevent research bias - C) To allow for hypothesis testing - D) To increase the validity of the experiment Answer: B) To prevent research bias Rationale: The double-blind procedure is used to avoid the potential for bias from either the participants or the researchers, which could skew the results of the study. 2. In psychological testing, what does the term 'reliability' refer to? - A) The test's ability to measure what it intends to measure - B) The consistency of the test results over time - C) The test's popularity among psychological professionals - D) The length of time the test takes to complete Answer: B) The consisten