All Free Psychology MCQs with Answers
Every Psychology question in the bank, across all chapters, each with the correct answer and a written explanation. Free and unlimited, with no account needed.
3,519 questions · page 160 of 176
- A. a high dosage of alcohol
- B. one-half the dosage given the experimental group
- C. a driving test before and after drinking alcohol.
- D. no alcohol at all
Explanation: A control group should not receive the experimental variable, so it would receive no alcohol while the experimental group receives…
Correct answer: no alcohol at all- A. Correlational method
- B. Experimental method
- C. Naturalistic observation method
- D. Participant observer method
Explanation: The experimental method manipulates an independent variable while controlling other factors, allowing researchers to test whether it…
Correct answer: Experimental method- A. Naturalistic observation
- B. Scheduled interview
- C. Case study
- D. Biographical enquiry
Explanation: A scheduled interview uses a predetermined set of questions or response areas, ensuring that the investigator elicits comparable…
Correct answer: Scheduled interview- A. there is one independent variable having three levels
- B. there are three independent variables having one level each
- C. there is one independent variable and three dependent variables
- D. there is one independent variable having four levels
Explanation: The number of bystanders is one independent variable, and it has three levels: zero, two, and four bystanders.
Correct answer: there is one independent variable having three levels- A. non-parametic
- B. introspection
- C. field research
- D. parametic statistics
Explanation: Introspection relies on a person's subjective report of inner experience, so it lacks the objective and replicable qualities expected of…
Correct answer: introspection- A. parapsychology
- B. psychometrics
- C. measure ecology
- D. social psychology
Explanation: Psychometrics is the branch concerned with constructing and evaluating psychological tests, including measures of intelligence, aptitude…
Correct answer: psychometrics- A. has not been standardized
- B. is not valid
- C. is not reliable
- D. has not been factor analyzed
Explanation: A valid diagnostic test should distinguish people who have depression from those who do not, so similar scores indicate poor validity.
Correct answer: is not valid- A. reliable
- B. valid
- C. conclusive
- D. both a and b
Explanation: A sound psychological measurement device should be reliable, producing consistent results, and valid, measuring what it claims to measure.
Correct answer: both a and b- A. Weber's law
- B. the opponent-process theory
- C. feature detection
- D. the difference threshold
Explanation: Weber's law states that the just noticeable difference is a constant proportion of the original stimulus, rather than a fixed physical…
Correct answer: Weber's law- A. cross-sectional study
- B. longitudinal study
- C. life-history study
- D. sequential study
Explanation: A longitudinal study follows the same individuals or subject group across an extended period, allowing researchers to observe change over…
Correct answer: longitudinal study- A. case study
- B. survey
- C. correlational
- D. experimental
- E. None of these
Explanation: An intensive investigation of one injured person, including the effects of damage to a brain region, is a case study.
Correct answer: case study- A. case history
- B. correlation
- C. negative correlation
- D. positive correlation
Explanation: When caloric intake and weight gain both increase, the variables move in the same direction, showing a positive correlation.
Correct answer: positive correlation- A. intervening variable
- B. independent variable
- C. dependent variable
- D. irrelevant variable
Explanation: Driver attention is the outcome being measured, so it is the dependent variable.
Correct answer: dependent variable- A. applied research
- B. basic research
- C. clinical research
- D. developmental research
- E. None of these
Explanation: Applied research uses psychological knowledge to solve practical problems, such as improving worker productivity through office design.
Correct answer: applied research- A. invalid
- B. biased
- C. error
- D. unreliable
Explanation: The rumor creates a demand characteristic, causing participants to change their behavior to appear non-racist.
Correct answer: biased- A. an experiment
- B. a correlational study
- C. a descriptive study
- D. a self-report study
Explanation: The psychologist only observes and records behavior without manipulating conditions or asking participants to report their experiences.
Correct answer: a descriptive study- A. replication
- B. placebo
- C. random sample
- D. double blind
- E. None of these
Explanation: A placebo is an inactive treatment made to resemble the real treatment, allowing researchers to separate pharmacological effects from…
Correct answer: placebo- A. research hypothesis
- B. observer expectancy effect
- C. independent variable
- D. inferential statistics
Explanation: A research hypothesis is a testable prediction about the relationship between variables, here that toy-filled environments will improve…
Correct answer: research hypothesis- A. survey research
- B. naturalistic observation
- C. experimentation
- D. replication
Explanation: Naturalistic observation involves systematically watching and recording behavior in its usual setting without manipulating conditions.
Correct answer: naturalistic observation- A. casually related
- B. negatively correlated
- C. independent variables
- D. dependent variables
- E. None of these
Explanation: A lower marital-satisfaction score among wealthier people means the two variables move in opposite directions, which is a negative…
Correct answer: negatively correlated