An international team of nearly 100 scientists has conducted one of the largest studies on love of all time. Their work is published in the journal Scientific Reports.
Psychologist Piotr Sorokowski based out of the University of Wrocław in Poland is first author of the Herculean (or perhaps more Shakespearean) scientific effort. He and numerous colleagues from dozens of countries joined together to survey 9,474 individuals over 18 years old in romantic relationships spread across 45 countries about their experiences of love. Specifically, the authors were curious how country-level factors such as modernization, gender equality, and collectivism were correlated with levels of love. Out of curiosity, they also explored whether a country’s average temperature was correlated with warmer feelings.
To assess love, participants in each country were given a 45-item Triangular Love Scale. Developed by psychologist Robert Sternberg, the questionnaire presents the taker with various statements about their significant other and asks them to rate their agreement with each statement from a level of 1 (not at all) to 9 (extremely). Example statements include, “I share deeply personal information about myself with ______,” and “I find myself thinking about _________ frequently during the day.”