Means that everyone in the population has the same likelihood of being asked to participate in the study.
operationalizing
placebo effect
random assignment
random sampling

Random sampling

Explanation:

A random sample is a subset of individuals (the sample) selected entirely at random from a larger set (the population) by a process that ensures that:

If we want to be more rigorous we can say that “A simple random sample is any size sample drawn from any size population such that every possible size sample is just as likely to be selected”.

what are the statements

earthquake fault lines