CustomExam Practice Test - 11/18/2025

Practice test covering 8 questions in 16 minutes. All questions are multiple-choice.

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What is external validity in research?

A:The degree to which the findings can be generalized outside the laboratory

B:The extent to which a study can be replicated

C:The measure of the consistency of results

D:The relationship between two variables

What is the definition of internal validity?

A:The degree to which the findings can be generalized outside the laboratory

B:The extent to which a study can be replicated

C:The measure of the consistency of results

D:The extent to which cause-and-effect inferences can be drawn from a study

Which of the following is an example of a variable?

A:Infinity

B:Well-being

C:Your soul

D:The sun

What is the definition of operationalization?

A:The process of turning a concept into something measurable

B:The process of analyzing data

C:The process of collecting data

D:The process of interpreting data

What is the difference between random selection and random assignment?

A:Random selection refers to the process of randomly selecting participants from a population, while random assignment refers to the process of randomly assigning participants to different groups or conditions. Random selection helps to ensure results are externally valid, while random assignment helps to balance out any preexisting differences between groups. Random selection is used to select a sample, while random assignment is used to assign participants to different conditions within a study. Without random assignment, any preexisting differences between groups could potentially confound the results.

B:Random selection is the process of randomly selecting participants from a population, while random assignment is the process of randomly assigning participants to different groups or conditions. Random selection helps to ensure that the sample is representative of the population, while random assignment helps to balance out any preexisting differences between groups. Without random assignment, any preexisting differences between groups could potentially confound the results.

C:Random selection is the process of randomly selecting participants from a population, while random assignment is the process of randomly assigning participants to different groups or conditions. Random selection helps to ensure results are externally valid, while random assignment helps to balance out any preexisting differences between groups. Random selection is used to select a sample, while random assignment is used to assign participants to different conditions within a study.

D:Random selection is the process of selecting participants from a population in a way that is not random, while random assignment is the process of randomly assigning participants to different groups or conditions. Random selection can introduce bias, while random assignment helps to balance out any preexisting differences between groups. Without random assignment, any preexisting differences between groups could potentially confound the results.

What is the definition of correlation?

A:A relationship between two variables such that when one changes, the other does as well

B:A research design that examines the effect of two variables on each other

C:A measure of the consistency of results

D:A relationship between two variables such that when one increases, the other decreases

Which of the following is an example of descriptive/observational research?

A:Naturalistic observation

B:Case study designs

C:Experimental design

D:Correlation design

What is the difference between a positive correlation and a negative correlation?

A:A positive correlation is a relationship between two variables such that when one increases, the other increases as well, while a negative correlation is a relationship between two variables such that when one increases, the other decreases. A positive correlation indicates a direct relationship between two variables, while a negative correlation indicates an inverse relationship between two variables.

B:A positive correlation is a relationship between two variables such that when one increases, the other decreases as well, while a negative correlation is a relationship between two variables such that when one increases, the other increases. A positive correlation indicates a direct relationship between two variables, while a negative correlation indicates an inverse relationship between two variables.

C:A positive correlation is a measure of the consistency of results, while a negative correlation is a relationship between two variables such that when one increases, the other decreases. A positive correlation indicates a direct relationship between two variables, while a negative correlation indicates an inverse relationship between two variables.

D:A positive correlation is a relationship between two variables such that when one increases, the other increases as well, while a negative correlation is a relationship between two variables such that when one increases, the other decreases. A positive correlation indicates an inverse relationship between two variables, while a negative correlation indicates a direct relationship between two variables.