Susan Rovezzi CarrollSusan Rovezzi Carroll, PhD has provided hundreds of graduate students with advice and support on research methods and statistical procedures. She is president of Words & Numbers Research, Inc. which she founded in 1984. David Carroll MSW is vice president of Words & Numbers Research, Inc. He has several research publications and books to his credit and has expertise in demographic data analysis and the development of performance indicators for assessing outcomes. Read More Read Less