## How Questions Are Selected (Why Does the Same Kanji Keep Appearing?) Kanjidou uses a system called **SRS (Spaced Repetition)** to decide which kanji to show you. - The more often you answer a kanji correctly, the longer the gap before it appears again. - Kanji you get wrong are shown again soon — for example, the next day. - By reviewing each kanji **just as you're about to forget it**, you build long-term memory with fewer repetitions. Kanji you find difficult, or kanji that are due for review, are shown first — so seeing the same kanji come up repeatedly is **completely normal** and is actually a sign that your skills are steadily improving. Kanji you've already mastered will naturally appear less and less often.