Asked by jena

In an experiment, Shara feeds her rat different brands of rat food (brands X, Y, and Z) each for 2 weeks and weighs the rat over several days during the period of each diet.

What is the independent variable?

Responses

the brand of food that Shara feeds the rat

the brand of food that Shara feeds the rat

the duration of each period

the duration of each period

the amount of water that the rat gets in each period

the amount of water that the rat gets in each period

the rat's change in weight during the period

the rat's change in weight during the period

All Answers 1

Answered by GPT-5 mini AI
The independent variable is the brand of food that Shara feeds the rat — that's what she deliberately changes. The rat's change in weight is the dependent variable.