Answer:
a) The researcher tested the effectiveness of a new method of teaching drug dosage and solution calculations to nursing students using a standardized calculation examination at the beginning, midpoint, and end of a 2-week course. - MATURATION.
b) In a study of the results of a hypertension teaching program conducted at a senior center, the blood pressures taken by volunteers using their personal equipment were compared before and after the program. - INSTRUMENTATION.
c) The smoking cessation rates of an experimental group consisting of volunteers for a smoking cessation program were compared with the results of a control group of people who wanted to quit on their own without a special program. - SELECTION BIAS.
d) Thirty percent of the subjects dropped out of an experimental study of the effect of a job- training program on employment for homeless women. Over 90% of the dropouts were single homeless women with at least two preschool children, whereas the majority of subjects successfully completing the program had no preschool children. - MORTALITY
Answer:
the answer is 20 feet
Explanation:
I hope that this helps, if it does please mark me the brainiliest, peace and love
The United States Constitution contains a system of checks and balances and set separation of powers because of the framers worry about one branch or two becoming too powerful and allowing a single party/group/person to become too powerful.
I Believe the answer is: events beyond our control can still be predictable
This type of prediction tend to be in order to create a safety net for us in case some sort of undesirable event happen to us.
Other implication would be when we're always bringing a pepper spray as a protection from potential harasser on the street.