好こう意いの返へん報ぽう性せい

expression, noun

reciprocity of liking; reciprocal liking

Psychology term: the tendency to like someone more when you believe they like you. Used in academic or explanatory contexts.

• 好こう意いの返へん報ぽう性せいは、対たい人じん魅み力りょくの研けん究きゅうでよく取とり上あげられる概がい念ねんだ。

  Reciprocity of liking is a concept often discussed in interpersonal attraction research.

• 相あい手てが自じ分ぶんに好こう意いを持もっていると知しると、こちらも好こう意いを抱いだきやすくなる。これを好こう意いの返へん報ぽう性せいという。

  When you learn that someone likes you, you tend to like them back. This is called reciprocity of liking.