Answer :
Sally's IQ, based on Terman's ratio IQ equation, is 80.
To calculate Sally's IQ using Terman's ratio IQ equation, we can use the following formula:
[tex]\[\text{IQ} = \left( \frac{\text{Mental Age}}{\text{Chronological Age}} \right) \times 100\][/tex]
Where:
- Mental Age is the age at which Sally is functioning, which is 12 years.
- Chronological Age is Sally's actual age, which is 15 years.
- Plug in the values.
[tex]\[\text{IQ} = \left( \frac{12 \text{ years}}{15 \text{ years}} \right) \times 100\][/tex]
- Perform the division.
IQ = (0.8) × 100
- Multiply by 100.
IQ = 80
