2 ideas from David Greene, each explained in a minute and credited to the original work. Free on Savvy.
In a classic experiment, children who already loved drawing were split into groups: some got an expected reward for drawing, some got an unexpected reward, and some got none. Only …
— Mark R. Lepper, David Greene & Richard E. Nisbett, Undermining Children's Intrinsic Interest with Extrinsic Reward: A Test of the 'Overjustification' Hypothesis
People systematically overestimate how many others share their own beliefs, habits and choices. In a classic 1977 study, Stanford students who agreed to wear an advertising sandwic…
— Lee Ross, David Greene & Pamela House, The 'False Consensus Effect': An Egocentric Bias in Social Perception and Attribution Processes