Answer :
Final answer:
The IQ of a four-year-old child with a mental age of four, as tested by the Stanford-Binet test, would be 100, reflecting average intelligence.
Explanation:
The IQ (intelligence quotient) of an individual is calculated by using the formula:
IQ = (Mental Age/Chronological Age) x 100.
If a four-year-old child is shown to have a mental age of four when taking the Stanford-Binet test, this would mean that the child's mental abilities are equal to that which is typically expected at their chronological age.
Using the above IQ formula:
- Mental Age: 4 years
- Chronological Age: 4 years.
The IQ would therefore be calculated as follows: IQ = (4/4) x 100 = 100. Thus, a four year old child having a mental age of four would have an IQ of 100.
Learn more about IQ here:
https://brainly.com/question/30225678
#SPJ11