Your book suggests that there are three questions that you need to ask to assess sample quality. What are they? Then answer each of those three questions for this sample: CDC's NISVS study, noninstitutionalized (e.g., not in nursing homes, prison, and so on) English- and/or Spanish-speaking residents aged 18 and older were randomly selected through an RDD sampling method in 2010. A total of 9,970 women and 8,079 men were selected. Approximately, 45% of the interviews were conducted by landline and 55% by cell phone. The final sample represented the U.S. population very well. For example, the proportion of the sample by gender, race/ethnicity, and age in the NISVS sample was very close to the sample proportions for the U.S. population as a whole.
What will be an ideal response?
From what population were the cases selected? There is a clearly defined population: the adult residents of the continental United States (who live in households with phones).
What method was used to select cases from this population? The case selection method is a random selection procedure, and there are no systematic biases in the sampling.
Do the cases that were studied represent, in the aggregate, the population from which they were selected? The findings are very likely to represent the population sampled, because there were no biases in the sampling and a very large number of cases were selected. However, it must be remembered that an average of 30% of those selected for interviews could not be contacted or chose not to respond. This rate of nonresponse may have created a small bias in the sample for several characteristics.
You might also like to view...
Blackmail is a form of ________ in which a threat is made to disclose a crime or other social disgrace
Fill in the blank(s) with correct word
In the juvenile justice system, the term that connotes committed the act is responsible, whereas in the adult justice system it is guilty
Indicate whether the statement is true or false
The recognition of a parent-child privilege is a recent development in the law of the United States. Support for it has grown largely from the realities of life.
Answer the following statement true (T) or false (F)
Even where state statutes defining the inchoate offense of ___________ do not include the term "substantial" in defining the act requirement, courts usually impose that requirement
Fill in the blank(s) with correct word