Which is the best fertilizer for Mr. Jimenez’ backyard grass? Select the type of study most appropriate to the question.

A. Experimental
B. Experimental blinded
C. Case-controlled observational
D. Observational

My answer is C

Disagree.

I believe it is B

I believe it's B

To determine the best fertilizer for Mr. Jimenez's backyard grass, the most appropriate type of study would be an experimental study.

Explanation:

In an experimental study, researchers have control over the variables being tested. They can manipulate the independent variable (in this case, different types of fertilizers) and observe the effect on the dependent variable (the health and growth of the grass). By using different types of fertilizers in a controlled setting and measuring their impact on the grass, researchers can determine which fertilizer is the most effective. This type of study allows for a cause-and-effect relationship to be established between the fertilizer and the grass's health.

On the other hand, case-controlled observational and observational studies primarily focus on gathering and analyzing data from existing sources or participants without directly manipulating variables. These types of studies are more appropriate for investigating associations and relationships between variables, rather than determining cause and effect. Therefore, they would not be the most suitable in this situation.

Experimental blinded studies involve masking the identity of the treatments from both the researchers and participants to reduce biases. While blinding can be beneficial in certain circumstances, it may not be necessary or practical for this particular question since the treatments (different types of fertilizers) are easily distinguishable.