Correct Answer - Option 1 : 116·66
Intelligence Quotient commonly known as IQ refers to the score of a standardized test that assesses and measures human intelligence.
- The concept and formula of Intelligence Quotient were developed in 1912 by a German psychologist, William Stern.
- An individual’s Intelligence Quotient (IQ) is determined by the formula given below,
\({\bf{Intelligence}}\;{\bf{Quotient}}\;\left( {{\bf{IQ}}} \right) = \frac{{{\bf{Mental}}\;{\bf{Age}}\;\left( {{\bf{MA}}} \right)\;}}{{{\bf{Chronological}}\;{\bf{Age}}\;\left( {{\bf{CA}}} \right)}} \times 100\)
- Where,
- Mental Age is based on intellectual development.
- Chronological Age is the number of years a person has lived.
-
For example, if in an intelligence test a 12 years old boy is found to have a mental age of 14 years, then his IQ would be 14/12 x 100 = 116·66.
IQ table:
|
IQ Classification
|
IQ Range
|
|
Genius
|
145 and above
|
|
Very superior
|
135-145
|
|
Superior
|
125-135
|
|
Above-average
|
115-125
|
|
Average
|
90-115
|
|
Below average
|
80-90
|
|
Dull or borderline
|
70-80
|
|
Feebleminded, Moron
|
50-70
|
|
Imbecile
|
25-50
|
|
Idiot
|
0-25
|
Hence, we conclude that a student’s chronological age is 12 years and mental age is 14 years. His/Her IQ will be 166.66.
