Effectiveness of an e-learning program on evidence-based-medicine for lay persons with interest

INTERVENTION: To watch whole part of the originally developed e‐learning program on evidence‐based medicine and epidemiology for Japanese lay persons (only once on the study day) To watch only introduction part of the originally‐developed e‐learning program on evidence‐based medicine and epidemiology for Japanese lay persons (only once on the study day) CONDITION: Not particularly limited PRIMARY OUTCOME: The mean value of knowledge‐test score (answered correctly with confidence) right after watching the e‐learning program SECONDARY OUTCOME: 1. The mean value of knowledge‐test score (answered correctly with confidence) four weeks after watching the e‐learning program; 2. The mean value of knowledge‐test score (answered correctly) right after watching the e‐learning program; 3. The mean value of knowledge‐test score (answered correctly) four weeks after watching the e‐learning program; 4. The change of the score of "Communicative and Critical Health Literacy" between baseline and right after watching the e‐learning program; 5. The change of the score of "Communicative and Critical Health Literacy" between baseline and four weeks after watching the e‐learning program INCLUSION CRITERIA: Using the Internet in daily life