Question

Which of the following elements would help you decide when a cause-and-effect conclusion about the relationship between two variables in an experiment has been reached?(1 point)
Responses

low-cost study design
low-cost study design

random selection of participants
random selection of participants

an international study
an international study

a small sample size

Answer 1

The element that would help you decide when a cause-and-effect conclusion about the relationship between two variables in an experiment has been reached is **random selection of participants**. This is because random selection helps to eliminate bias and ensures that the sample is representative of the larger population, which is crucial for making valid conclusions about cause-and-effect relationships.