BRGHT
BRGHT
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Answers
IQ test
Question 28
Which figure should replace the question mark?
a.
b.
c.
d.
e.
f.
Explanation
From top to bottom, the place where the white rectangle is located moves 1 step to the left (and starts at the right side again if the end is reached). From left to right, each step 1 of the rectangles is shorter.
Question statistics
Overview
Question ID:
GG6QnqxP
Main category:
Logical Reasoning
Sub category:
Raven's Progressive Matrix Logical
Difficulty Level:
None
What is item difficulty?
Nr of times answered:
278
Average IQ of people who answered this question:
136.51
Percentage of answers correct:
32.01%
Item Response Theory (IRT)
What is Item Response Theory?
Item difficulty:
None / 20
What is item difficulty?
Discrimination:
4.43
What is item discrimination?
Point of Maximum Information:
141.46
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 278 individual test takers who have answered this question.
Distractor Analysis
What is distractor analysis?
Average IQ of people who gave the correct answer:
144.00
Why does the average IQ of people who answer the questions differ per question?
Average IQ of people who gave an incorrect answer:
131.30
Percentage per answer
The graph illustrates the percentage of individual test takers, 278 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
.
Response Time Analysis
What is response time analysis?
Optimal time to spend on question:
10 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 16 seconds to answer this question