Procedures for recruitment, obtaining consent and assent, and protecting child privacy would need to be developed, vetted, and established. Depending on the laws in each country, a procedure would be needed to establish responsibility for reporting and disclosure of child maltreatment, how to respond, and who should respond. Other research in countries should be done to determine any differences by gender, what is the appropriate recall period, how do children understand time in relation to events, and what prompts can help children situate experiences accurately within time. Another issue is what gradations in frequency will children report most accurately (e.g., never, once or twice, many vs. never, sometimes, often) and how to grade severity of experiences, if warranted.