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Know Your Own I.Q.

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Alternative cover edition ISBN 9780140135183

Intelligence quotient, as a useful means of measuring brain capacity, has come increasingly into the public eye in recent years. This famous book (and its sequel "Check Your Own IQ") enables the reader to estimate and confirm his/her own IQ rating.

192 pages, Paperback

First published January 1, 1962

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About the author

Hans Jürgen Eysenck

158 books69 followers
= Hans J. Eysenck = H.J. Eysenck
Hans Jürgen Eysenck (/ˈaɪzɛŋk/; 4 March 1916 – 4 September 1997) was a psychologist born in Germany, who spent his professional career in Great Britain. He is best remembered for his work on intelligence and personality, though he worked in a wide range of areas. At the time of his death, Eysenck was the living psychologist most frequently cited in science journals

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Displaying 1 - 4 of 4 reviews
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Author 3 books90 followers
September 21, 2017
I have taken a few IQ tests before, but I never had confidence in those. Most of those books I bought were published in the Philippines, and it was quite obvious that most of those had little quality control.

'Who cares about IQ, anyway?'

I care.

I care about it not in the sense that I'm going to smelt a 24-karat gold medal and brag about it, but I care about exactness and accuracy. In relation to the rest of the world, how smart am I? If other people's existence revolves around being fashionable or popular, I put a lot of stock in intelligence. It seems to me that I can flourish in this world if I keep on being knowledgeable: I have to be knowledgeable in order to survive, and yes, I belong to the Enneagram Type 5.

I dug around Gould's Book Arcade for over three hours just looking for books that were both affordable and interesting to me. There were a lot of interesting books, but they weren't inexpensive. This book wasn't, either, but it would be the first time in my life that I would be taking an IQ test prepared by a renowned psychologist. Hans Eysenck was no pushover in the world of psychology, and I banked on the fact that he was among the foremost psychologists on intelligence then.

He certainly didn't make things easy for me: in his instructions, for the IQ test to be reliable, all eight tests must be taken (over several days, if possible), and corrected only when all eight have been completed. One test alone wasn't reliable enough, he wrote, but if one had the patience and persistence to take all eight tests without correcting them individually, the average of the tests would be a more or less reliable and accurate reflection of one's IQ. I guess I matured enough to possess the patience necessary to answer all tests without flinching or cheating (although due to the fact that my patience was running low, I took the last four tests in a day).

After I completed the tests over a span of four days, I discovered that the tests were divided into four groups. I realized that each test group was scored differently, so I divided my test scores into groups then averaged them on the chart provided at the back of the book.

Tests I and II gave me an average score of 20.5 out of 40, and that corresponded to an IQ of 125; tests III and IV gave me an average score of 25.5 out of 40, and that corresponded to an IQ of ~143; tests V, VII, and VIII gave me an average score of 22.3 out of 40, and that corresponded to an IQ of 140. Finally, test VI was the sole member of its group. My score in that test was 23, and that corresponded to an IQ of 130.

The average of those four IQ scores was 134.375. Rounding down, my IQ's most probably 134. It doesn't help me a bit in the real world, but at least I know that that's an accurate score.

121 reviews
April 30, 2023
This was incredibly boring. I felt like I was reading a scholarly research article from college. Other than the brief instructions and the tests, I would not recommend this book unless writing a research paper for school.
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