A Researcher Is Interested in Whether Circadian Rhythms Influence Participants

question 17

Multiple Choice

A researcher is interested in whether circadian rhythms influence participants' performance on different kinds of memory tests.The researcher first classifies participants according to whether each is a morning person or an evening person.The researcher then randomly assigns participants to receive either an implicit memory test or an explicit memory test.The researcher then tests everyone at 8 a.m.What is(are) the main effect(s) being tested in the study?

• A) type of person
• B) memory test
• C) type of person and performance
• D) type of person and memory test

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Definitions:

Umbilical Vein

The blood vessel in a developing embryo and fetus that carries oxygenated blood from the placenta to the growing baby.

Ligamentum Venosum

A fibrous remnant of the fetal ductus venosus that connects the left branch of the portal vein to the inferior vena cava.

Ligamentum Arteriosum

A small ligament that is the remnant of the ductus arteriosus formed within three weeks after birth.

Ligamentum Teres

A round ligament of the hip joint that connects the femur and the acetabulum, playing a role in hip stabilization.