As you read and begin to fully appreciate the nuance in using these pro-
cedures, you will also list Andrew Hayes as an MVM (most valuable meth-
odologist). As an MVM, Andy has crafted a resource that will be a staple

in the personal library of every serious researcher. It will be your personal

guide to asking and answering the new wave of complex research ques-
tions. With better answers to better questions, we all will be better for it.