Symptoms of Depression  Level of Alcohol Use  
Low  Moderate  High  Totals  
Few  7  8  9  24 
Some  15  10  18  43 
Many Totals 




To find:
The strength and pattern of relationship.
Given:
The given statement is,
A sample of children has been observed and rated for symptoms of depression. Their parents have been rated for level of alcohol use.
The given table of information is,
Symptoms of Depression  Level of Alcohol Use  
Low  Moderate  High  Totals  
Few  7  8  9  24 
Some  15  10  18  43 
Many  8  12  3  23 
Totals  30  30  30  90 
Approach:
If the gamma value is less than 0.30, it is said that there is a weak association between the categories.
If the gamma value is greater than 0.60, it is said that there is a strong association between the categories.
The gamma compares the number of pairs of cases ranked in the same order on both variables (
Formula used:
For compares the number of pairs of cases ranked in the same order on both variables (
Calculation:
From the given table of information,
The value of
And the value of
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