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## EDUC 750 Quiz 2 Liberty University

- Open ended questions are most often used in research involving:
- Which level of measurement is also called the qualitative level?
- The important difference between the ratio level of measurement and the interval level is:
- Which type of validity is used when no clear criterion exists for validation purposes?
- Researchers often use which definition of children “at risk”?
- According to the authors, available online data are usually inaccurate.
- Which of the following is NOT an unobtrusive measure, as outlined by Webb et al. (2000)?
- Concurrent and predictive validity are types of _____ validity.
- Which level of measurement is the most mathematically precise?
- Triangulation refers to the:
- Direct observation may be a primary or supplementary form of measurement in a study.
- Reliability is a prerequisite for measurement validity.
- Quota sampling does not use a random selection procedure.
- Random selection is typically a haphazard process.
- Which sampling method relies on a random selection procedure?
- Which one of the following statements accurately describes a normal distribution?
- How many steps are involved in systematic random sampling?
- What is the primary limitation of cluster sampling compared to simple random samples?
- Snowball sampling would be most useful for studying which one of the following groups?
- Choosing sites on the basis of their fit with a typical situation helps increase the generalizability of the sample
- The number of elements from one sample case to another is called the sampling:
- A study sampling students at Pine Ridge Elementary in Beachside, Iowa would represent the population of:
- Understanding sampling distributions is the foundation for understanding how statisticians can estimate sampling error.
- Which type of research would be most likely to involve a nonprobability sampling method?
- The smaller the sample size, the less sampling error.