Experimental Designs Practice (Statistics)

Front

What is an experimental design?

Back

An experimental design is a structured approach to conducting experiments that allows researchers to determine the effects of one or more independent variables on a dependent variable.

Front

What is a Completely Randomized Experiment?

Back

A Completely Randomized Experiment is a type of experimental design where all participants are randomly assigned to different treatment groups, ensuring that each participant has an equal chance of being assigned to any group.

Front

What is a Blocked Experiment?

Back

A Blocked Experiment is an experimental design that involves dividing participants into subgroups (blocks) based on a certain characteristic before randomly assigning treatments within each block.

Front

What is a Matched Pair Experiment?

Back

A Matched Pair Experiment is a design where participants are paired based on similar characteristics, and each member of the pair is assigned to different treatment groups.

Front

What is an Observational Study?

Back

An Observational Study is a research method where the researcher observes and records behavior without manipulating any variables.

Front

What is an explanatory variable?

Back

An explanatory variable is a variable that is manipulated or categorized to observe its effect on a response variable.

Front

What is a response variable?

Back

A response variable is the outcome or effect that is measured in an experiment to assess the impact of the explanatory variable.

Front

What is the purpose of a control group?

Back

The purpose of a control group is to provide a standard for comparison against the experimental group, helping to isolate the effect of the treatment.

Front

What is a placebo?

Back

A placebo is a substance with no therapeutic effect used as a control in testing new drugs, allowing researchers to compare the effects of the actual drug against a non-active treatment.

Front

What is random assignment?

Back

Random assignment is the process of assigning participants to different groups in an experiment using randomization to ensure each participant has an equal chance of being placed in any group.