Form fields — Required vs Optional

Memo card series n ° 1 : a maximum of information in a minimum of word. The way to mark field have strong implications for how users perceive and complete forms. This is a case of psychology quite simple, indicate the positive is better because it gives a better feeling to users, the decision is made by the user : gives them the power to believe that they have the choice. On the other hand, if you

[jay-es]

入力フォームで「必須」を指示するのは心理学的にマイナス効果があり、エラーが増えたり入力完了率が下がる。赤い * マークだと分からない人もいる。必須項目の方が多いので「任意」の項目だけを示す方が見やすい

[pmint]

日本語の場合Optionalは「あれば」になるのかな。