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 dependent variable?
The plant size at the end of the growing season
The fertilizer amount
The tomato yield at the end of the growing season
The temperature
The correct answer is option - C. The tomato yield at the end of the growing season
Explanation:
The dependent variable in research or an experiment is the factors that are being affected by the independent variables. The dependent variable is being tested or measures in an experiment and its measurement alter with the change in an independent variable.
In this research amount of the fertilizer is an independent variable that effect different dependent factors such as temperature, plant size, and sunlight but the tested variable that is tomato yield at the end of the growing season tested by weighing.
Thus, the correct answer is option - C The tomato yield at the end of the growing season.
