Answer :
To find Jack's IQ score using the Terman formula, we can follow these steps:
1. Identify Jack’s Chronological Age: This is his actual age, which is given as 10 years old.
2. Identify Jack’s Mental Age: This is the age at which Jack performs mentally, and it is given as 8 years old.
3. Apply the Terman formula for IQ:
[tex]\[
\text{IQ} = \left(\frac{\text{Mental Age}}{\text{Chronological Age}}\right) \times 100
\][/tex]
4. Plug in the Known Values:
- Mental Age = 8
- Chronological Age = 10
[tex]\[
\text{IQ} = \left(\frac{8}{10}\right) \times 100
\][/tex]
5. Calculate the Result:
- First, divide 8 by 10 to get 0.8.
- Then, multiply 0.8 by 100 to find Jack's IQ score.
6. Compute the Final Score:
[tex]\[
\text{IQ} = 0.8 \times 100 = 80
\][/tex]
Therefore, Jack's IQ score, according to the Terman formula, is 80.
1. Identify Jack’s Chronological Age: This is his actual age, which is given as 10 years old.
2. Identify Jack’s Mental Age: This is the age at which Jack performs mentally, and it is given as 8 years old.
3. Apply the Terman formula for IQ:
[tex]\[
\text{IQ} = \left(\frac{\text{Mental Age}}{\text{Chronological Age}}\right) \times 100
\][/tex]
4. Plug in the Known Values:
- Mental Age = 8
- Chronological Age = 10
[tex]\[
\text{IQ} = \left(\frac{8}{10}\right) \times 100
\][/tex]
5. Calculate the Result:
- First, divide 8 by 10 to get 0.8.
- Then, multiply 0.8 by 100 to find Jack's IQ score.
6. Compute the Final Score:
[tex]\[
\text{IQ} = 0.8 \times 100 = 80
\][/tex]
Therefore, Jack's IQ score, according to the Terman formula, is 80.
