Stats Ch 4 Sampling and Experiment Design

Front

What is a placebo?

Back

A sham or empty treatment that appears to be the real treatment in an experiment.

Front

What are experimental units?

Back

The individuals or items to which treatments are applied in an experiment.

Tags

CCSS.HSS.IC.B.3

Front

What is a blocking design?

Back

An experimental design where subjects are divided into groups (blocks) based on a certain characteristic (e.g., gender) before random assignment to treatment or control groups.

Tags

CCSS.HSS.IC.B.3

Front

What is cluster sampling?

Back

A sampling technique where entire groups (clusters) are selected at once, rather than individuals.

Tags

CCSS.HSS.IC.B.3

Front

What is systematic sampling?

Back

A sampling method where every nth individual is selected from a list or queue.

Tags

CCSS.HSS.IC.B.3

Front

What is a response variable?

Back

The outcome or measurement that is affected by the treatment in an experiment.

Front

What is a lurking variable?

Back

A variable that is not included in the study but affects the response variable.

Front

What is a confounding variable?

Back

A variable that is related to both the treatment and the response variable, potentially leading to incorrect conclusions.

Tags

CCSS.HSS.IC.B.3

Front

What is a randomized comparative design?

Back

An experimental design that randomly assigns subjects to treatment and control groups to compare outcomes.

Tags

CCSS.HSS.IC.B.3

Front

What is convenience sampling?

Back

A sampling method that involves selecting individuals who are easiest to reach.

Tags

CCSS.HSS.IC.B.3