A psychologist evaluated Tameka, an eight-year-old child who has experienced difficulty in school. The psychologist sent questionnaires to 100 teachers to determine if they had ever seen similar cases. Based on the teachersâ responses, the psychologist hypothesized that a particular diet might cause the learning problem. Following her tabulation of the responses, she designed a study that would tell her if diet were the actual cause. Which of the following lists, in order from first to last, the research methods this psychologist used?
a) experiment, case study, survey
b) case study, survey, experiment
c) correlation, case study, experiment
d) naturalistic observation, survey, experiment