Answer:
I think its B and D I hope this helps :D
Everyday occurrences, like identifying criminals in police lineups, are often improved by using psychological experimental procedures, like double blind procedures.
Option D is correct
<h3>What does test procedure?</h3>
A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over.
<h3>Why is double-blind experiment difficult?</h3>
A double-blind procedure requires that both the researcher and the subjects are unaware of the process. therefore the researcher that is analyzing the subjects would have no information about the subjects receiving the new drug (which is the treatment group) and those who are not receiving the drug (which is the control group).
Learn more about test procedure:
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Answer:
They didn't like the polices
Explanation:
I think one of them is a protest. but im not sure
