Question

Alice is participating in a research study in which she completes a questionnaire every year. She has been doing this for the past five years, and the purpose of the research is to study how consumers’ attitudes and preferences toward various food products change as they age. This type of study in which respondents are questioned at multiple points in time is called a _____.

Answer 1

Answer:

longitudinal study

Explanation:

Longitudinal studies are typically observational studies, as they are usually limited to observing the sample elements without manipulating factors that may alter the variables of interest. For example, to verify the effectiveness of a treatment for posttraumatic stress disorder, researchers can analyze the psychological status of the study subjects before and after treatment. This is because a longitudinal study is one that evaluates how the variables behave in the research participants over a given period of time.

Another example of this type of study is what is happening to Alice, where researchers ask her to answer a questionnaire each year so they can assess how her attitudes and preferences have changed over the course of a year.

Answer 2

Answer:

This type of study in which respondents are questioned at multiple points in time is called a longitudinal study.

Explanation:

The research study that Alice s participating is a Longitudinal study. This type of study gathers data from an individual over time. In this case is about consumers’ attitudes and preferences toward food products, which makes sense to chose a study like this that will observe behaviors and thoughts from day-to-day related with these food products. This kind of study is good to have more accurate data.