Is there an attachment or more to the text?
        
             
        
        
        
Answer:
The type of sampling used in Jankowski's study of gangs is Option D. Stratified sampling. 
Explanation:
With stratified sampling, the researcher will partition the population into different groups, usually based on some characteristic that is common to that group. In this case, it was the different kinds of gang membership. Then, the researcher will take a sample of people within each specific group using another sampling method like simple random sampling for instance. The groups that are used in stratified sampling are called strata. Another example would be a national survey that is divided into strata of the different major ethnic groups that comprise the national population. 
 
        
             
        
        
        
Answer: an effort to understand and influence the surrounding environment 
Explanation: The cognitive theory of development observed in individuals is focused at understanding the growth and functional development of an individual's brain and the impact, relationship and influence of his environment on the entire process which could affect the level and speed of information processing, language and skill development and perception or conceptual ideas. All this cognitive skills are influenced by an individual's environment and as such cognitive developmental theories are tailored at understanding the impact and influence of the environment on an individual's cognitive skills. 
 
        
             
        
        
        
Answer:
C. systematic desensitization
Explanation:
systematic desensitization is a form of behavioral treatment that is carried out by exposing the patients to the source of fear in a controlled manner.  The intensity of the exposure usually will start really small and will be increased as the treatment goes on. Over time, the patient will be used to confronting the source of fear and the fear will eventually reduced / went away.
This can be seen in what the Therapist did to Kayla. He asked her to think about her fears and tried to relax in that situation before eventually move up to asking her to use crowded elevators to conform her fear of closed spaces.
 
        
             
        
        
        
Answer:
D. Pleasing climate
Explanation:
One of the reasons that there are many amusement parks in Orlando, Florida is the city's pleasant climate. Amusement parks are usually outside, and good weather is necessary for people to visit them. If it were cold in Orlando, there wouldn't be many visitors, and the parks would close down. The same goes for the population - there would be way fewer visitors if the city had a small population. Interesting local wildlife has nothing to do with amusement parks. 
Thus, option D is the correct one.