This job lists characteristics of an experiment.© BrainMass Inc. brainmass.com June 3, 2020, 5:43 pm ad1c9bdddf
We have, "researchers must be blind as to condition". In experiments, the researcher must do something and observe the results, given by the participants. If the researchers are blind to the condition, then they will not be able to effectively gather the information for result collection purposes. So we know this can't be the answer.
Next we have, "the research hypothesis cannot be formulated until the supportive data have been collected". Although true in many types of experiments, this can not be generalized ...
Elements of an experiment are noted.