Intro to Experimental Design Vocabulary

This is what happens when an individual chosen for the sample can't be contacted or refuses to participate.

• bias

• censoring

• nonresponse

• voluntary response

Tags

CCSS.HSS.IC.B.3

Selecting individuals from a population who are easy to reach.

• Sample Survey

• Convenience Sampling

• Simple Random Sampling

• Census

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

In statistics, this is a variable that is manipulated and may cause a change in the response variable.

• factor

• level

• placebo

• treatment

Tags

CCSS.HSS.IC.B.3

This occurs when there is a systematic pattern of inaccurate answers to a survey question

• nonresponse

• confounding

• response bias

• placebo effect

Tags

CCSS.HSS.IC.B.3

A group of individuals in the population that are located near each other.

• cluster

• sample

• population

• strata

Tags

CCSS.HSS.IC.B.3

The entire group of individuals we want information about.

• population

• sample

• census

• strata

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

A treatment that has no active ingredient, but is otherwise like other treatments.

• observational study

• factor

• experiment

• placebo

Measusres the outcome of a study.

• explanatory variable

• response variable

• confounding variable

• factors

Tags

CCSS.HSS.IC.B.3

This deliberately imposes some treatment on individuals to measure their responses.

• explanatory variable

• response variable

• factor

• experiment

Tags

CCSS.8.SP.A.4

This is what happens when two variables are associated in such a way that it is not possible to distinguish between their effects on the response variable.

• compounding

• confounding

• experiment

• census