Indicate whether an independent groups t test or a correlatedgroups t test shoul
ID: 2919277 • Letter: I
Question
Indicate whether an independent groups t test or a correlatedgroups t test should be used to analyze the relationship betweenthe independent and dependent varilables. Assume that theunderlying assumptions of the tests have been satisfied.(Could you exlpain the reasaon?).... 1)Jensen(1973) reviewed research on the relationship betweenrace and intelligence test scores .In one study, the mean scores ofAfrican Americans and whites were compared. 2)Gallup (1976) studied attitudes toward nuclear energy over aperiod of 10 years. The same individulals were interviewed in both1965 and 1975, and druing each interview, the respondents indicatedthier attitudes toward nuclear energy on a 5-point sclae. The meanattutude scores were compared across interviews. 1)Jensen(1973) reviewed research on the relationship betweenrace and intelligence test scores .In one study, the mean scores ofAfrican Americans and whites were compared. 2)Gallup (1976) studied attitudes toward nuclear energy over aperiod of 10 years. The same individulals were interviewed in both1965 and 1975, and druing each interview, the respondents indicatedthier attitudes toward nuclear energy on a 5-point sclae. The meanattutude scores were compared across interviews.
Explanation / Answer
Independent sample t-test is only used when both: