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Answers
IQ test
Question 20
Which figure should replace the question mark?
a.
b.
c.
d.
e.
f.
Explanation
From left to right, the line rotates 45 degrees each step. From top to bottom the arrow moves counterclockwise each step (3 out of 8 steps that would return the arrow to the same place). The arrow rotates 45 degrees each step.
Question statistics
Overview
Question ID:
54jf8Poc
Main category:
Logical Reasoning
Sub category:
Raven's Progressive Matrix Logical
Difficulty Level:
18
What is item difficulty?
Nr of times answered:
1023
Average IQ of people who answered this question:
125.54
Percentage of answers correct:
45.65%
Item Response Theory (IRT)
What is Item Response Theory?
Item difficulty:
18 / 20
What is item difficulty?
Discrimination:
2.87
What is item discrimination?
Point of Maximum Information:
129.65
What is Point of Maximum Information?
Item Characteristic Curve (ICC)
This
Item Characteristic Curve
shows the probability that a person with a given IQ level will correctly answer this question. This graph is based on the answers and the IQ levels of 1023 individual test takers who have answered this question.
Distractor Analysis
What is distractor analysis?
Average IQ of people who gave the correct answer:
130.90
Why does the average IQ of people who answer the questions differ per question?
Average IQ of people who gave an incorrect answer:
120.03
Percentage per answer
The graph illustrates the percentage of individual test takers, 1023 in total, who selected each answer option for this question.
Average IQ per answer
The graph displays the average IQ of test takers who chose each answer option. In an effective question, the average IQ of test takers who selected the correct answer should be significantly higher than that of test takers who selected the other options, also known as
distractors
.
Time spent:
you used 19 seconds to answer this question