Question 1

Which of the following best describes the difference between descriptive, correlational, and experimental research designs in biology?

Accepted Answer

Descriptive research observes and records behavior without manipulating variables; correlational research examines relationships between variables without establishing causation; experimental research manipulates variables to determine cause-and-effect relationships.

Question 2

A scientist wants to test the effect of a new drug on memory in mice. She randomly assigns mice to two groups: one receives the drug, the other receives a placebo. What is the independent variable in this experiment?

Accepted Answer

The type of drug administered (drug vs. placebo)

Question 3

Which neurotransmitter is most directly involved in regulating mood, sleep, and appetite?

Accepted Answer

Serotonin

Question 4

Damage to which brain region is most likely to impair your ability to form new long-term memories?

Accepted Answer

Hippocampus

Question 5

Which of the following best illustrates bottom-up processing in sensation?

Accepted Answer

Recognizing a song by hearing its individual notes and assembling them into a melody

Question 6

If a person can just barely detect a difference in weight between a 10 g and a 12 g object, according to Weber's Law, what is the minimum difference they could detect if the object weighed 50 g?

Accepted Answer

6 g

Question 7

Which of the following is an example of classical conditioning?

Accepted Answer

A dog salivates when it hears a bell that has been repeatedly paired with food.

Question 8

Which of the following best describes the difference between explicit and implicit memory?

Accepted Answer

Explicit memory involves conscious recall of facts and events; implicit memory involves unconscious skills and procedures.

Question 9

Which of the following is a dependent variable in an experiment testing the effect of caffeine on reaction time?

Accepted Answer

The reaction time measured after caffeine consumption

Question 10

A researcher finds that as hours of sleep increase, levels of stress decrease. What type of correlation is this?

Accepted Answer

Negative correlation

Question 11

Which of the following is most likely to occur if the occipital lobe is damaged?

Accepted Answer

Impaired visual processing

Question 12

Which of the following best describes the Stroop effect?

Accepted Answer

The delay in reaction time when the color of a word does not match the name of the color

Question 13

Which of the following is an example of operant conditioning?

Accepted Answer

A child receives a sticker for completing homework, increasing the likelihood of doing homework again.

Question 14

Which of the following best describes the function of the hypothalamus?

Accepted Answer

Regulates homeostasis, including hunger, thirst, and body temperature

Question 15

Which of the following is a real-world example of top-down processing?

Accepted Answer

Reading a sentence and understanding its meaning even if some letters are missing

Question 16

Which of the following is NOT a function of the frontal lobe?

Accepted Answer

Processing visual information

Question 17

Which of the following best describes the difference between episodic, procedural, and semantic memory?

Accepted Answer

Episodic memory is for personal experiences; procedural memory is for skills and actions; semantic memory is for facts and general knowledge.

Question 18

A patient is unable to recognize faces but can identify objects. Which brain region is most likely damaged?

Accepted Answer

Fusiform gyrus

Question 19

Which of the following is an example of a dependent variable in a study measuring the effect of exercise on blood pressure?

Accepted Answer

The blood pressure readings after exercise

Question 20

If a researcher wants to generalize findings from a sample to a population, which concept is most important?

Accepted Answer

Random sampling

General Biology Study Guide: Key Concepts in Biological Psychology and Experimental Methods

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