Question

The twin study mentioned in the second paragraph is limited in the conclusions we can draw from it by the fact that:

A. the number of subjects is always too small, given the rarity of twins in the general population
B. the study failed to account for the effect of socioeconomic class on medical care, especially mental health care
C. siblings typically share the same environment grouping up as well as sharing genetics
D. mood disorders can only be diagnosed through self-reporting

Answer 1

The twin study mentioned in the second paragraph is limited in the conclusions we can draw from it by the fact that siblings typically share the same environment, the study failed to account for the effect of socioeconomic class on healthcare, and mood disorders can only be diagnosed through self-reporting.

Step-by-step explanation:

The twin study mentioned in the second paragraph is limited in the conclusions we can draw from it by the fact that:

A. siblings typically share the same environment grouping up as well as sharing genetics. This is a limitation because it is difficult to determine whether the similarities observed in twins are due to genetics or shared environmental factors.

B. the study failed to account for the effect of socioeconomic class on medical care, especially mental health care. This is a limitation because socioeconomic class can have a significant impact on access to healthcare and can confound the results of the study.

C. Mood disorders can only be diagnosed through self-reporting. This is a limitation because self-reporting may not fully capture the true prevalence of mood disorders, and some individuals may not be aware of or willing to report their symptoms.