Members of the school board were tentatively considering a p…

Members of the school board were tentatively considering a proposal to institute the wearing of uniforms in the elementary and middle school grades. After their last meeting, they are now strongly in favor of the proposal. This illustrates the phenomenon known as

On last year’s Black Friday, you saw a long queue waiting in…

On last year’s Black Friday, you saw a long queue waiting in front of an electronics store. You didn’t know what these people were waiting for but thought that since so many people were waiting, there must be a great deal. However, it turns out that the electronics store canceled the original deal that they have advertised for a month. The Black Friday price was just a little bit below the original price. In this example, which two techniques/principles are applied?