Question 1

Which of the following best describes the function of dendrites in a neuron?

Accepted Answer

They receive incoming signals from other neurons.

Question 2

A psychologist is conducting a study to test whether a new teaching method improves memory retention. She randomly assigns students to either the new method or the traditional method and measures their test scores. In this experiment, what is the independent variable?

Accepted Answer

The type of teaching method used

Question 3

Which neurotransmitter is most directly associated with the regulation of mood, sleep, and appetite?

Accepted Answer

Serotonin

Question 4

A patient suffers from muscle weakness and poor coordination. Which part of the brain is most likely affected?

Accepted Answer

Cerebellum

Question 5

Which of the following best illustrates the concept of 'all-or-nothing' firing in neurons?

Accepted Answer

A neuron fires only if the threshold is reached, otherwise it does not fire at all.

Question 6

Which of the following is an example of a double-blind study?

Accepted Answer

Neither the participants nor the experimenters know who is receiving the treatment or the placebo.

Question 7

A researcher wants to study the effect of sleep deprivation on memory. She assigns participants to either a sleep deprivation group or a control group and measures their recall of a word list. Which research method is she using?

Accepted Answer

Experiment

Question 8

Which hormone is primarily released by the adrenal glands in response to stress?

Accepted Answer

Cortisol

Question 9

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

Accepted Answer

Relays sensory information to the appropriate areas of the brain

Question 10

A person is unable to recognize faces but can identify objects. Which area of the brain is most likely damaged?

Accepted Answer

Fusiform gyrus

Question 11

Which of the following best defines the amplitude of a sound wave?

Accepted Answer

The height of the wave, which determines loudness

Question 12

Which of the following is an example of selective attention?

Accepted Answer

Focusing on a friend's voice at a noisy party while ignoring other conversations

Question 13

Which of the following best describes the function of GABA in the nervous system?

Accepted Answer

It acts as the main inhibitory neurotransmitter, reducing neural activity.

Question 14

A researcher finds a positive correlation between hours of sleep and test performance. Which of the following is a correct interpretation?

Accepted Answer

As hours of sleep increase, test performance also increases.

Question 15

Which of the following best describes the function of the occipital lobe?

Accepted Answer

Processing visual information

Question 16

Which of the following is an example of a confounding variable in an experiment?

Accepted Answer

A variable that unintentionally influences the outcome, making it difficult to determine the effect of the independent variable

Question 17

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

Accepted Answer

Regulates basic drives such as hunger, thirst, and body temperature

Question 18

A person is experiencing difficulty with speech production but can understand language. Which brain area is most likely damaged?

Accepted Answer

Broca's area

Question 19

Which of the following best describes the function of the corpus callosum?

Accepted Answer

It connects the left and right hemispheres of the brain, allowing communication between them.

Question 20

Which of the following is the correct formula for calculating the mean of a set of scores $x_1, x_2, ..., x_n$?

Accepted Answer

$\frac{\sum_{i=1}^{n} x_i}{n}$

Psychology Study Guide: Key Concepts and Applications

Study Guide - Practice Questions

Study Guide - Flashcards