Answers IQ test

Question 21

Which figure should replace the question mark?


There is only 1 answer that fits within the bigger figure. The black block has the shape of the intersection of the two figures with the dotted lines.

Question statistics

Question ID: hzsN8n8X
Main category: Logical Reasoning
Sub category: Raven's Progressive Matrix
Difficulty Level: 12What is item difficulty?
Nr of times answered: 3530
Average IQ of people who answered this question: 108.91
Percentage of answers correct: 60.34%
Item Response Theory (IRT)What is Item Response Theory?
Item difficulty: 12 / 20What is item difficulty?
Discrimination: 1.58 What is item discrimination?
Point of Maximum Information: 105.16 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 3530 individual test takers who have answered this question.
Distractor AnalysisWhat is distractor analysis?
Average IQ of people who gave the correct answer: 110.89 Why does the average IQ of people who answer the questions differ per question?
Average IQ of people who gave an incorrect answer: 105.77
Response Time AnalysisWhat is response time analysis?
Optimal time to spend on question: 34 seconds What is the optimal response time?
Optimal time to spend on question
The graph illustrates the last 250 correct and incorrect answers to this question, as well as the time it took for test takers to arrive at the answer. Using this data, an average optimal time for answering the question is calculated. However, it should be noted that the optimal time may vary for individual test takers.

Time spent: you used 45 seconds to answer this question