Front

Investigation aim

Back

the purpose of study

Front

Investigation question

Back

the question that to be solved by a study

Front

Hypothesis

Back

a statement predicting the probable outcomes an investigation

Front

Independent variable

Back

the variable that is being manipulated, controlled, selected, or changed by the researcher

Front

Dependent variable

Back

the variable that is being measured by the researcher

Front

Controlled experiment

Back

an experimental investigation of the relationship between one or more independent variables and a dependent variable in which all other variables are controlled

Front

Extraneous variable

Back

a variable other than the independent variable that may have an unwanted effect on the dependent variable and results of an investigation

Front

Controlled variable

Back

a variable that is held constant to ensure that the only influence on the dependent variable is the independent variable

Front

Confounding variable

Back

an unwanted variable that has affected the results of an investigation

Front

Population

Back

the wider group of people that a study is investigating