Use the following study to answer the following question(s): A researcher applies varying amounts of fertilizer (0, 2, 4, 8, 10 units) to 50 potted tomato plants.All other variables that may affect the outcome (watering, temperature, sunlight, plant size, etc.) are kept the same from pot to pot.At the end of the growing season, the tomatoes grown on each plant are weighed to determine which fertilizer level produced the largest tomato yield.
-Which variable is the independent variable?
A)The temperature
B)The tomato yield at the end of the growing season
C)The fertilizer amount
D)The plant size at the end of the growing season

Question

Quizplus · Accepted Answer

The independent variable is the one that the researcher manipulates or changes, which in this case is the amount of fertilizer applied to the tomato plants. Thus, the independent variable is the fertilizer amount (C).

Use the Following Study to Answer the Following Question(s): a Researcher