Seubert et al. (2017) used a cross-sectional design to examine the changes in olfaction in participants of different ages. What were the key findings?
A. As individuals aged, their sense of smell declined.
B. Olfactory dysfunction increased with age.
C. The attrition rate was too high to draw meaningful conclusions.
D. Olfactory dysfunction was the same for men and women.
Answer: B
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In an experiment, the comparison group often varies substantially from the experimental group on basic characteristics such as sex, age, and level of education
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