Question

An elementary school teacher is interested in the relation between sugar consumption and activity level in preschool children. The teacher gives 30 preschool children from the preschool where he works either 0 milligrams, 20 milligrams, or 50 milligrams of sucrose (i.e., sugar) in a breakfast drink. He then observes their behavior for 25 minutes during their morning outdoor play period and codes their activity level. Please identify the: a) population b) sample c) independent variable d) levels/conditions of the independent variable e) dependent variable

Answer 1

Part a

Population: Population for this scenario or study is given as ‘all preschool children’.

Part b

Sample: Sample for this research study is given as ’30 preschool children’.

Part c

Independent variable: Independent variable for this research study is given as ‘amount of sucrose in milligrams in a breakfast drink’.

Part d

Levels of independent variable: There are three levels of independent variable such as 0 milligrams, 20 milligrams, and 50 milligrams.

Part e

Dependent variable: The dependent variable for this study is given as ‘activity level’.