Dr. Amaro’s study, our example described above, had little scientific value because his "common sense approach" which he himself describes as lacking rigor, is invalid. Standard social science methodologies were developed expressly because such "common sense approaches" were shown to provide unreliable and invalid data. So although the research topic is important, the validity of the study is questionable. Even if there had existed little information on how design reviews are (really)
conducted, and it therefore would have been acceptable to use an exploratory methodology (interviews), this methodology should have been used correctly.