The psychologist would need to make sure the advice was based on sound research.
Explanation:
Psychologists are the people who deal with the patients who are affected by any kind of mental illness. These illness can arise due to difficult life situations and stress factors. There are many branches in psychology such as behavioral, communal and social psychology and the specialists differ varied based on their skills and expertise.
When a psychologist is asked to write a column in a newspaper regarding mental health issues and it treatment, he has to advise based on the proved and scientifically tested research findings rather than hypothetical statements. 
 
        
             
        
        
        
 When we are describing Washington D.C as being south of New York city, we would be describing its Relative location 
Relative location refers to the position of a place or entity based on its location with respect to other locations. Its not a fixed reference , it changes depending on the referred location.
One more E<u>xample on Relative location -</u>
The United States is located south of Canada. If the location of the United States is described based on its relative location to Venezuela, then it would be described as being north of that country.
To see another question on Relative location:
brainly.com/question/1578740
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Answer:
D: more land is being farmed
Explanation:
This is the same thing as over farming. 
Irrigation systems are used to work the entire day with no stop, using so much water and allows water to be over used. Many farms now use irrigation systems. You have to think about where the answer D goes to: more farms = more water usage for plants, crops, utilities, animals.
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