Dr. White reads about a new theory that states that depression is caused by increased levels of estrogen in the womb. To test this theory, she conducted a study comparing the level of estrogen in amniotic fluid in individuals who were later diagnosed with depression with the level of those who did not develop depression. Dr. White found no differences between the groups in estrogen levels in the amniotic fluid. Based on these results, Dr. White should conclude that:.

Evaluate the ways in which her study differed from previous studies that supported this theory.

Explanation:

Estrogen is thought to increase serotonin, which is a chemical in the brain that boosts mood. Estrogen deficiency may cause a decline in serotonin that contributes to mood swings or depression.

High levels of estrogen may put you at higher risk of blood clots and stroke. Estrogen dominance may also increase your chances of thyroid dysfunction. This can cause symptoms such as fatigue and weight changes.

It is expected for Dr White to evaluate her study thoroughly.