Asked by Rachel Frame on Jul 11, 2024
Verified
A consumer research firm is hired to determine which brand of laundry soap is most preferred by consumers. After surveying a sample of housewives, they find that the most preferred brand is White Suds. Which of the following is the greatest threat to external validity in this study?
A) Consumers' lack of interest in laundry products
B) The absence of difference in laundry soaps between manufacturers
C) The stereotypical assumption that only women do laundry
D) Including both males and females in research investigations
External Validity
The capacity for the conclusions of a study to be relevant in other circumstances and among different groups of people.
Stereotypical Assumption
A generalized and oversimplified belief about a particular group or type of individuals.
Laundry Soap
A cleaning agent, specifically designed for washing clothes, that helps remove dirt and stains.
- Familiarize oneself with the idea of external validity and its essential value in research work.
- Recognize the selection of research designs that could affect a study's generalizability.
Verified Answer
HB
Himani BhawsarJul 15, 2024
Final Answer :
C
Explanation :
The greatest threat to external validity in this study is the stereotypical assumption that only women do laundry. This assumption could lead to an insufficient and biased sample of only housewives being surveyed, which may not accurately represent the entire population's preferences. It's essential to involve a diverse group in the study design to ensure the results' generalizability.
Learning Objectives
- Familiarize oneself with the idea of external validity and its essential value in research work.
- Recognize the selection of research designs that could affect a study's generalizability.