Deciding whether a study will compare different groups of individuals or examine changes within the same group of individuals involves a decision about the research <u>des</u>ign.
Explanation:
Behavioral research studies about patterns and their variables of individual and social behavior of a person with response to stimuli (internal or external)
A research design essentially is the blueprint of the research that integrates and interlinks various research components like evidence and data collection, measurements undertaken, analysis and the interpretations made in a coherent, logical and comprehensive way.
Decision about the type of comparison group in group experimental researches is taken during research design to decide about how the comparison should be made to obtain the correct results. It can be compared with an individual to a group, or a control group against an experimental group. 
The pattern changes in each group is studied based on the independent  variables which changes in the experimental group and is fixed or constant in a control group.
 
        
             
        
        
        
2. 70% sales
3. Teens and young adults 
5. They want them to believe they are only buying half of the price
        
                    
             
        
        
        
Answer:
No
Explanation:
That is not ok. You need to talk to him not shock him
 
        
                    
             
        
        
        
C., because Craig eats a variety of different and healthy food. This can include fruits, vegetables, and grains. The other answers limit how many nutrients they can get. 
If you found this especially helpful, I'd appreciate if you'd vote me Brainliest for your answer. I want to be able to assist more users one-on-one!
        
             
        
        
        
Answer:
<em>Smoking</em> can cause lung disease by damaging your airways and the small air sacs (alveolar) found in your lungs. Lung diseases caused by smoking include <em>COPD</em> or known as (<em>Chronic obstructive pulmonary disease)</em>, which includes <em>emphysema</em> and <em>chronic bronchitis</em>. Cigarette smoking causes most cases of lung cancer.
Explanation:
Smoking can cause cancer almost anywhere in your body:
- Bladder
- Blood (acute myeloid leukemia)
- Cervix
- Colon and rectum (colorectal)
- Esophagus
- Kidney and ureter
- Larynx
- Liver
- Oropharynx (includes parts of the throat, tongue, soft palate, and the tonsils)
- Pancreas
- Stomach
- Trachea, bronchus, and lung
    I assume or believe that you understand