JUST ANSWER WITH A SAMPLE T OR F I DONT NEED TO KNOW WHY .

1. The hypotheses need to be briefly explained to the respondent when a questionnaire is used to collect data. 2. A disadvantage of electronic questionnaires is that this way of surveying is relatively expensive. 3. Convenience sampling and quota sampling are examples of probability sampling. 4. Simple random sampling is a method associated with a high degree of generalizability. 5. Cluster sampling is the most representative probability sampling design. 6. The bigger the sample size, the better. 7. Primary data are more important than secondary data 8. It is preferred to first ask specific questions and then more general questions. 9. Interviews can help you to better interpret the results of a quantitative investigation 10. Interviews are not a useful method to collect data in case studies. 11. The manipulation of the independent variable is also known as the treatment, and the results of the treatment are called treatment effects. 12. A field study is an experiment done in the natural environment in which work goes on as usual, but treatments are given to one or more groups. 13. Cause-and-effect inferences can be contaminated by the effects of the passage of time. Such contamination effects are denoted history effects. 14. Biases that might affect the internal validity of experimental designs are often reduced by enhancing the level of sophistication of the experimental design. 15. Observational methods are best suited for research requiring self-report descriptive data; that is when behavior is to be examined directly asking the respondents themselves 16. An observational study is said to be low in control when the situation or setting is manipulated or contrived by the researcher