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782 articles found
Statistics
The friendship paradox is the phenomenon in which most people's friends have, on average, more friends than they do. This article explains why it happens with a simple calculation,
Psychology
As many people face stress and uncertainty in modern society, the importance of mental health is being emphasized more than ever. In particular, resilience plays an important role
Tourism studies
Plog’s Psychographic Model places travelers on a spectrum from adventurous allocentrics to familiarity-seeking psychocentrics and links them to the rise and fall of destinations. T
Information technology
Every website has a domain name, but what do the parts after the site name actually mean? This article explains what a domain name and DNS are, how a domain name is structured, and
Economics
The benchmark interest rate plays a very important role in the South Korean economy. It is the interest rate set by the Bank of Korea and applied when commercial banks borrow funds
Food & nutrition
Dieting is considered an important issue for many people today, and various methods have been proposed for losing weight and maintaining health. However, improper dieting methods n
Library & information science
How do you find the studies that have cited a paper you are reading? This article explains how Eugene Garfield's citation index came about and what it is, how to search backward an
Statistics
Why is it so likely that two people in a small group share a birthday? This article covers the birthday paradox, the two keys to calculating it, why our intuition misses it, and ho
Library & information science
When a search list looks right at the top, how do you know what was left out? This piece explains precision and recall, the trade-off between them, the F1 score that combines both,
Statistics
Reliability and validity always come up when studying surveys in statistics, marketing, or opinion polling. This guide uses two illustrated examples, shooting and makeup, to make t
Earth science
The Coriolis effect is the phenomenon in which Earth's rotation alters the paths of moving objects. This article looks in detail at its definition and principle, its influence on w
Journalism & communication
The Magic Bullet Theory is the view that media messages hit audiences directly, like bullets, and produce the same effect in everyone. We look at the age of propaganda that produce
