Dr. Ryan conducted a study on whether or not students in his 8am class were less likely to enjoy group discussions than students who had class with him in the afternoon . I conducted the same study with my 8 am class and afternoon class and found the same results. Dr. Ryan's study had a high level of ____ Dr. Ryan conducted a study on whether or not students in his 8am class were less likely to enjoy group discussions than students who had class with him in the afternoon . I conducted the same study with my 8 am class and afternoon class and found the same results. Dr. Ryan's study had a high level of ____ Interpretation Reliability Literacy Validity