Learn Before
Review the variables the research team intends to collect. Diagnose whether these variables are quantitative or not, and explain your reasoning based on how these variables are structured.
Case context: A research team is designing a psychological study to examine social behaviors and mental well-being in a participant group. To gather their data, the researchers plan to measure each person's height, observe and record their level of talkativeness during a five-minute interaction, record the number of siblings they have, and administer a questionnaire to yield a score on a depression scale.
Question: Review the variables the research team intends to collect. Diagnose whether these variables are quantitative or not, and explain your reasoning based on how these variables are structured.
Sample answer: The variables proposed by the research team—height, level of talkativeness, number of siblings, and score on a depression scale—are all quantitative variables. They fall under this category because each one represents a measurable quantity that the researchers will assess by assigning a specific numerical value to each individual participant.
Key points:
- Diagnoses the collected variables (height, talkativeness, siblings, depression score) as quantitative variables.
- Explains that these variables represent measurable quantities.
- Notes that the classification relies on assigning a numerical value to each individual.
Rubric: A complete response must correctly identify the listed variables as quantitative and justify this by explaining that each variable represents a measurable quantity that is assessed by assigning a numerical value.
0
1
Tags
KPU
Research Methods in Psychology - 4th American Edition @ KPU
Related
Examples of Quantitative Variables
Which of the following best describes a quantitative variable in psychological research?
In a psychological study, a researcher records the number of siblings each participant has. This is an example of a(n) ________ variable because the data represents a measurable quantity.
In a study on digital behavior, a researcher codes a participant's 'Most Used Social Media App' as 1 for Instagram, 2 for TikTok, and 3 for Snapchat. Because the data is recorded using numerical values, 'Most Used Social Media App' is a quantitative variable.
Psychological researchers use various methods to assign numerical values to their observations. Match each specific measurement approach to the descriptive logic that explains how it functions as a quantitative variable.
A researcher is evaluating different methods to measure persistence in a psychological study. Rank the following measurement strategies from the highest degree of quantitative precision (the most detailed measurable quantity) to the lowest degree of quantitative precision (the least detailed use of numbers).
In psychological research, a quantitative variable is a type of variable that represents a measurable quantity, typically assessed by assigning a numerical value to each individual.
Which of the following is an example of a quantitative variable in psychological research?
Match the specific research measurement example to its description as a quantitative variable representing a measurable quantity.
In a study on family dynamics, a researcher records the number of siblings each participant has. According to the definition of variables that represent a measurable quantity typically assessed by assigning a numerical value to individuals, the number of siblings is a _____ variable.
Evaluate the sequence of steps a researcher must follow to successfully operationalize and record a quantitative variable in a psychology study, ordering them from initial construct selection to final numerical assignment.
Based on the definition of a quantitative variable in psychological research, explain what it represents and how it is typically assessed. Provide at least two common examples of quantitative variables that might be measured in a study.
Review the variables the research team intends to collect. Diagnose whether these variables are quantitative or not, and explain your reasoning based on how these variables are structured.
A researcher wants to study the relationship between family size and mental health. If the researcher decides to measure 'family size' by recording the number of siblings a person has, and 'mental health' by calculating a score on a depression scale, what specific type of variables are being utilized, and what determines this classification?