Many states wanted the Constitution to have the Bill of Rights
        
                    
             
        
        
        
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 
 
        
             
        
        
        
The Neolithic Revolution refers to the creation all of the following cultural aspects except a. Religious ceremonies 
 
        
                    
             
        
        
        
Answer:
Without public goods, we wouldn't have schools, parks, or rec centers, to name a few examples.
 
        
                    
             
        
        
        
This would be the opportunity cost: the cost on missing out on different opportunities once one opportunity is chosen. So if you choose A over B, the opportunity cost is the gain you could have had if you'd chosen B (even if you anyway couldn't have chosen both in the first place!)