IQ
Normal Distribution & IQ
AP Psychology · Unit 7: Testing & Individual Differences
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IQ Score:
100
z-score:
0.00
Percentile:
50th
Classification:
Average
IQ Score
100
Raw score
z-Score
0.00
Standard deviations
Percentile
50.0
% below this score
Rarity
1 in 2
People at or above
Category
Average
Classification
IQ Score
100
Mean (μ)
100
Std Dev (σ)
15
Display
SD Bands
Percentages
Area Shading
Test Scale
Wechsler (15)
Stanford-Binet (16)
SAT Scale
Score Analysis
Quick Quiz
▼
1. On a standard IQ test, the mean and SD are:
Mean=50, SD=10
Mean=100, SD=15
Mean=100, SD=10
Mean=500, SD=100
2. About 68% of people have IQ scores between:
70-130
85-115
90-110
55-145
3. An IQ of 130 is at approximately what percentile?
84th
95th
98th
99.9th
Check Answers