Allergic reactions are

A) ?a result of digestive system dysfunction.
B) ?an abnormal immune system reaction to a foreign substance.
C) ?caused by viruses.
D) ?more common in people whose immune systems are not fully functional at birth.


B

Psychology

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According to __________ theory, adolescents use group membership as a source of pride and self-worth.

A. gender schema B. dominance hierarchy C. the triarchic developmental D. social identity

Psychology

Part of Chapter 6 examined students' study strategies for easy and difficult material. Which of the following students provides the most accurate perspective on that research?

a. Carlo: "When the memory task is relatively easy, students spend about the same amount of time studying the easiest items and the most difficult items." b. Sondra: "When the memory task is relatively easy, students spend the most time on the difficult items; when the memory task is relatively difficult, students spend the most time on the easy items." c. Phil: "Students study the difficult items more than the easy items when the material is related to their own interests; otherwise, they show no consistent pattern in their study strategies." d. Indira: "Students' study strategies depend on their motivational level; the most motivated students divide their time equally among the topics, but the less motivated students spend more time on the difficult tasks."

Psychology

If a test is found to have poor test-retest reliability

a. using this test as a measure of performance in a repeated measures design is not advisable. b. participants tested on successive occasions will not receive the same scores on the test. c. sources of the change in participants' scores on the test cannot be determined. d. all of these

Psychology

Which of the following is NOT true of field research?

a. It is difficult to manipulate an independent variable while controlling extraneous variables. b. It is difficult to measure certain responses. c. There may be ethical issues with not obtaining informed consent. d. It is generally easy to control for potential confounds.

Psychology