In fact, the Ikea effect is connected to the psychological idea of effort justification. The idea is that an individual who makes a sacrifice to achieve a goal rationalises the effort by attributing greater value to the achievement.

事实上，宜家效应与心理学中的心血辩护效应有关。 心血辩护是指如果你为实现某个目标作出了牺牲，你就会赋予这项成就更高的价值，以此证明你的努力没有白费。