Answer: E!!!! and A
Explanation: Optician are to do eye glasses to correct eyesight, BUT, Opticians need prescriptions given from a Optometrist.
Answer:
D.) Enact measures to test city pools more frequently.
Answer:
You need a scale with good reliability
Explanation:
Reliability is defined as the consistency of a research study or measuring test. A reliable test produces the same repeated results under the same or consistent conditions.
Since one of the criterias is to select a scale that will consistently provide objective data, on a weekly basis, for depression and change gradually only in response to the positive effects of the drug being tested. You need a scale with good reliability.