Definitions
Which of the following types of research has a sole purpose of describing a particular phenomenon as it occurs in a sample?
Betty wants to know if having a mental health organization in a prison helps incarcerated people once they are released. Which of the following is the appropriate null hypothesis for this research question?
Jorge collects data on an individual who is convicted of white-collar crime charge. He asks the individual if they know other people who have been convicted of a white-collar crime charge who would be willing to participate in the study and based off those recommendations, Jorge continues collecting data on these individuals. Which type of sampling technique is this?
Snowball sampling
Tristan is researching calls for service in a neighborhood. The data below records the number of calls for service for 10 consecutive days in Springfield:
7 8 2 9 10 14 52 30 1 0
52
Which of the following types of samples are proportionally equivalent to the larger population that it was drawn from?
Betty wants to know if having a mental health organization in a prison helps incarcerated people once they are released. Which of the following is the appropriate alternative hypothesis for this research question?
Which of these groups always have the largest number of units of analysis?
Tristan is researching calls for service in a neighborhood. The data below records the number of calls for service for 10 consecutive days in Springfield:
7 8 2 9 10 14 52 30 1 0
What is the mode of the data set?
Which of the following is the subset of elements that could be potentially accessed from the population?
Sample frame
What type of variable is the number of thefts committed in a specific neighborhood?
Ratio
Christina is interested attitudes regarding the criminal justice system but does not have the resources to create a list of the people that she wants to sample from. Instead, she wants to ask people at the places she goes to often. What type of sampling method is this?
Convenience sampling
Tristan is researching calls for service in a neighborhood. The data below records the number of calls for service for 10 consecutive days in Springfield:
7 8 2 9 10 14 52 30 1 0
What is the median of the data set?
8.5
Which of the following is a characteristic about people, objects, or places that changes in a sample or population?
Variable
Which of the following elements of causation requires that the independent variables comes before the dependent variable?
Carmen is interested in federal prisoners who were doctors that committed a white-collar crime. She does not think she will be able to compile a list of people that fit these specific criteria but wants to sample them in some way. What is the best way for her to do this?
Tristan is researching calls for service in a neighborhood. The data below records the number of calls for service for 10 consecutive days in Springfield:
13.3
What is the definition of theories for statistics?
Which of the following is an example of categories of age represented properly?
Christina wants to sample college students to understand their opinions on the death penalty. She gets a list from the registrar’s office that tells her that there are 700 freshman, 600 sophomores, 550 juniors, and 400 seniors. She wants to sample 50 from each class and will choose them randomly. What kind of sampling method is she using?
Zara had 4 incidents of theft where $200, $2000, $300, and $10 worth of goods were stolen on each occasion. H & M had 4 incidents of theft where $600, $650, $600, and $660 worth of goods were stolen on each occasion. Which of the following explains the differences in these datasets?