The first records of the word deception come from the 1400s. It ultimately derives from the Latin verb dēcipere, meaning “to ensnare” (in the literal sense of trapping someone or an animal). Forms of deception include attempts to mislead or trick someone or trap them with a deceptive scheme.

What is the main reason of deception?

The rationale for such deception is that humans are sensitive to how they appear to others (and to themselves) and this self-consciousness might interfere with or distort from how they actually behave outside of a research context (where they would not feel they were being scrutinized).

What is the root of the word deception?

Deception occurs when you deceive, a word that comes from the Latin de- meaning "from" and capere, meaning "to take." When you deceive someone, the result may be taking — like items you don't really need from people willing to give them, believing they are helping you.