Question

You want to find out if years of lifting heavy weights has an effect on flexibility. What type of study should be conducted?

a) Survey
b) Observational study
c) Experiment
d) None of the above

Answer 1

An experiment should be conducted to find out if years of lifting heavy weights has an effect on flexibility.

Step-by-step explanation:

The type of study that should be conducted to find out if years of lifting heavy weights has an effect on flexibility is c) Experiment. An experiment allows the researcher to manipulate the independent variable (lifting heavy weights) and observe its effect on the dependent variable (flexibility). In this case, the researcher can randomly assign participants to a group that performs weightlifting exercises and another group that does not. The flexibility of both groups can then be compared to determine if there is a relationship between lifting heavy weights and flexibility.