Free Research Methods and Statistics MCQs with Answers

• A. control condition
• B. standard deviation
• C. hypothesis
• D. operational definition

Explanation: An operational definition states exactly how an abstract variable such as anxiety will be measured or identified in a study.

• A. the case study
• B. the survey
• C. naturalistic observation
• D. correlational research

Explanation: A case study examines one person in depth, combining present circumstances with personal, physical, social, and educational history.

• A. treat information about individual participants confidentially
• B. deceive participants about the true purpose of an experiment
• C. allow subjects to pick whether they are in the experimental or control group
• D. allow people to decide for themselves whether they want to participate in an experiment

Explanation: Deception can conceal the experiment's true purpose, reducing demand characteristics and the tendency to behave as researchers expect.

• A. correlational research
• B. case studies
• C. experimentation
• D. a double-blind procedureTry Science Kits

Explanation: Both self-esteem and income are measured variables, so their relationship is examined through correlational research.

• A. the range of the sample increases
• B. the standard deviation of the sample increases
• C. the man of the sample increases
• D. the standard deviation of the sample decreases

Explanation: A sample mean estimates the population mean more precisely when scores vary less, because a smaller standard deviation reduces sampling…

• A. research participants are exposed to the most favorable levels of experimental treatment
• B. dependent variable is not measured
• C. experimental treatment is absent
• D. experimenter exerts the greatest influence on participants behavior

Explanation: The control condition is the comparison condition in which the experimental treatment is absent or held at its baseline level.

• A. case studies and surveys
• B. random samples representative samples
• C. facts and theories
• D. causes and effects

Explanation: Experiments manipulate a suspected cause and measure its effect while controlling other factors, allowing researchers to distinguish…

• A. range
• B. median
• C. mode
• D. mean

Explanation: A grade-point average is an arithmetic mean: the grade values are added and divided by the number of courses or credits.

• A. all children are prone to aggressive behavior
• B. it is unethical to force children to watch violent television
• C. there was no control group
• D. aggression wasn't operationally defined

Explanation: Without a control group, the researcher cannot know whether hitting increased because of violent television or because of normal play…

• A. the case study
• B. naturalistic observation
• C. random sampling
• D. replication

Explanation: Replication means repeating a study to see whether its findings occur reliably under similar conditions.

• A. Advocates
• B. Decision makers
• C. Individuals
• D. Researchers

Explanation: “Advocates of the approach” fits the sentence because advocates are the people who support and describe its objectivity, logical analysis…

• A. single-blind procedure
• B. the type of experiment is not possible
• C. stereotaxic procedure
• D. double-blind procedure

Explanation: In a double-blind procedure, neither the participants nor the researchers who interact with them know who receives the experimental…

• A. Researchers
• B. Observers
• C. Critics
• D. Decision-makers

Explanation: “Critics of the approach” is the grammatical and conceptual fit because critics identify limitations such as impersonality and treating…

• A. Calculated
• B. Analytical
• C. Speeching
• D. Reporting

Explanation: A reporting style presents findings from the position of an outside observer who describes and judges the action.

• A. mean; mode
• B. scatterplot; correlation
• C. central tendency; variation
• D. skewed distribution; bar graph

Explanation: The median is a measure of central tendency, while the range measures variation or dispersion in scores.

• A. a biased population
• B. a biased sample
• C. a representative sample
• D. a statistically significant population

Explanation: Calling households only during a narrow weekday afternoon period excludes people who are working, studying, or otherwise unavailable, so…

• A. naturalistic observation
• B. standard deviations
• C. scatterplots
• D. random assignmentCounseling Services

Explanation: Random assignment places participants into groups by chance, helping ensure that pre-existing differences do not systematically affect the…

• A. Plan-oriented
• B. Action-oriented
• C. Subject-oriented
• D. Sector-oriented

Explanation: Action-oriented research is conducted to address a practical problem and produce useful change, rather than merely to develop theory.

• A. Approach
• B. Convenience
• C. Difficulty
• D. Quality

Explanation: A teacher directly involved in an activity has insider knowledge of its context, whereas an outsider may have difficulty interpreting what…

• A. random forecasting
• B. fandom selection
• C. random placement
• D. random assignment

Explanation: Random assignment means each participant has an equal chance of being placed in any experimental group.