Deandre Is New Teacher at a Local Elementary School

Multiple Choice

Deandre is new teacher at a local elementary school. He decides to conduct a brief study testing the fifth graders knowledge of science at the beginning of the school year and at the end of the school year. He will randomly assign students to either a "hands-on" science group that does experiments with each lesson plan or to a "video" science group that assigns videos and online tutorials in support of the science lesson plans. Based on this information which of the following would be considered the independent variable (IV) ?

A) types of science group
B) science knowledge at the beginning of the year
C) science knowledge at the end of the year
D) age of the fifth graders