1) A researcher wants to use a new 20-item happiness scale that she developed. Before administering it in her study, she tests if all the items in the new scale are focused on happiness by splitting them into two sub- scales (10 evennumbered questions and 10 oddnumbered questions) to see if the sub scale scores are similar. Which type of reliability test was the researcher performing A)The researcher was actually testing for validity and not reliability of the measure B) Internal Consistency C) Inter-rater reliability D) Testretest reliability 2) A new scale with 50 items was developed to measure stress. It was found to produce consistent results, but the results did not accurately reflect individuals' level of stress and reflected more to level of fear. Which statement best illustrates which measurement principle is described? A) It is neither a reliable or a valid measure. B)|t is a reliable measure. C) It is a valid measure. D) It is both a reliable and a valid measure. 3) A researcher is interested in studying the government's role in combating HIV/AIDS in Moldova, a country in Eastern Europe. Due to the punishment of drug use, the researcher works with a nongovernmental organization to recruit people who injected drugs within the past 30 days. Unfortunately, only a handful are willing to come forward to participate in the study. Among those who participated, the researcher asks these participants if they know of other people who injected drugs in the past 30 days who may be interested in participating. Which type of sampling design was conducted? A) Convenience sampling B) Quota sampling C) Cluster sampling D)Snowball sampling