what is reliability and validity in context of an experiment you think would be useful to run in your own life:

• What is the question you're trying to answer?
• Is there an instrument that can help you find that answer?
• what would be a great instrument.
• How can a test be reliable and not valid?
• Why is a test not valid unless it is reliable?
• What precautions can you take to ensure that you get data that is both authentic and reliable?