List of practice Questions

The is the standard deviation of the sampling distribution of the mean or proportion.

_________ are appropriate when there is a single measurement of each element in the sample, or there are several measurements of each element but each variable is analyzed in isolation.

_________ are statistical techniques that attempt to group data based on underlying similarity, and thus allow for interpretation of the data structures. No distinction is made as to which variables are dependent and which are independent.

A frequency distribution helps

Which of the following statements is correct about implicit alternatives?

A representation of the elements of the target population consisting of a list or set of directions for identifying the target population is a ________.

________ is a sampling procedure in which each element of the population has a fixed probabilistic chance of being selected for the sample.

_________ does not allow direct generalizations to a specific population, usually because the population is not defined explicitly.

All the following statements are true about snowball sampling except:

Which of the following is not a data collection method?

Which statement is not true regarding the relationship between reliability and validity?

Which of the following is not an objective of a questionnaire?

The great weakness of questionnaire design is lack of ________.

A _________ is a single question that attempts to cover two issues.

Which of the following statements is not an advantage of unstructured questions?

Which of the following statements is not a disadvantage of structured questions?

When developing a questionnaire, the six Ws (who, what, when, where, why, and way) are used when ________.

The conditions that must be satisfied before making causal inferences include all the following except:

Which of the following statements is not true concerning the time order of occurrence of variables?

When considering _________, accumulated evidence from several investigations increases our confidence that a causal relationship exists.

A ________ is a measurement scale with five response categories ranging from “strongly disagree” to “strongly agree,” which requires the respondents to indicate a degree of agreement or disagreement with each of a series of statements related to the stimulus objects.

________ is the extent to which a scale produces consistent results if repeated measurements are made on the characteristic.

________ is a type of validity, sometimes called face validity, that consists of a subjective but systematic evaluation of the representativeness of the content of a scale for the measuring task at hand.

Research designs may be broadly classified as _________ or _________

Cross-sectional and longitudinal designs are types of: