EVALUATION EXAMS 2026 SOLVED
QUESTIONS AND SOLUTIONS GRADED A+
⩥ What is the average IQ? Answer: 100, with a standard deviation of 15
points, with a Normal Distribution of:
~68% fall between 85 and 115 (+/- 1 SD).
~95% fall between 70 and 130 (+/- 2 SD).
⩥ What is the Flynn effect? Answer: The steady rise in IQ scores over
generations (~3 points per decade).
⩥ Why wasn't the Flynn effect obvious? Answer: IQ tests are
periodically recalibrated, masking the improvement as new norms reset
"100."
⩥ What causes the Flynn effect? Answer: Improved nutrition, education,
and cognitive stimulation.
⩥ Heritability of IQ? Answer: - IQ is more heritable in adults than
children; therefore, many speculate that IQ is more malleable in adults
than in children
- Heritability is not 100%, and environment (e.g., poverty, education)
still has a significant impact