Deandre Is New Teacher at a Local Elementary School

question 68

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

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Definitions:

Line

A straight geometrical figure that extends infinitely in both directions without thickness.

Slope

In mathematics, it is the measure of the steepness or incline of a line, defined as the ratio of the vertical change to the horizontal change between two points on the line.

Positive Economics

A branch of economics that focuses on objective analysis and the description of how the economy functions, as opposed to normative economics that involves value judgments.

Normative Economics

An area of economics that makes assessments of economic fairness or desired economic outcomes and aims of public policy.