Voorbeeld vragen die met validiteit te maken hebben:

• does this study really answer the question it posed?
• does this test measure what we want to measure?
• what does this laboratory study reveal about the real world?

I'm going to encourage you a little, to help you get started. :)

I am going to encourage you a little, to help you get started :)
Since you looked us up and read the site enthousiastically, I would like to offer you a big discount.