Research Methods

A principle formed after research has been done

• theory

• hypothesis

An assumption made before any research is done

• theory

• hypothesis

Explaining exactly how variables will be measured in a study is a(an)

• wording effect

• standard deviation

• operational definition

Operational definitions are used so a study can be

• valid

• replicable

• ethical

Drawing data from one particular group or person over a long period that can be applied to all is a(an)

• naturalistic observation

• case study

• survey

Watching people or animals in their own environment without any manipulation or interaction is a(an)

• naturalistic observation

• case study

• survey

Asking questions to a random sampling of people to collect data is a(an)

• naturalistic observation

• case study

• survey

Surveys can be tricky because of

• wording effects

• hindsight bias

• overconfidence

Sandy wants to do a study on the effects of social media on American teenagers. All american teens would be her

• random sample

• control group

• population

Sandy will choose 100 students from each of the 50 states for her study. This is her

• population

• control group

• random sample