Question

QUESTION 1 A developmental psychologist is interested in how one's Attention System changes during adolescence. Specifically, the psychologist is interested in the ability of adolescent's to divide their attention among two or more tasks (e.g. to multi-task). To assess the changes in attention during adolescence, the researcher randomly selects a cohort of (n = 11) individuals at the onset of puberty (e.g. 0 years since puberty). At this time, the researcher measures how long (in seconds) the adolescents can successfully divide their attention between two tasks without making an error (the duration of time they can multi-task without errors). The researcher also measures how long these same individuals can divide their attention between two similar tasks 3 years later, and then measures this another time 6 years later. The researcher proposes that there will be differences in the ability to multi-task and divide one's attention throughout the 6 years tested Based on the above information, select True or Felse: True Falso: The Duration of Time Mulb-Tasking Without Errors (in seconds) is the independent variable in this data set. The levels are: 1: Onset of Puberty (O yrs), 2:3 Years After Onset, and 3: 6 Years After Onset. True False QUESTION 2 A developmental psychologist is interested in how one's Attention System changes during adolescence. Specifically, the psychologist is interested in the ability of adolescent's to divide their attention among two or more tasks (e.g. to multi-task). To assess the changes in attention during adolescence, the researcher randomly selects a cohort of in - 11) individuals at the onset of puberty (e.g. O years since puberty) At this time, the researcher measures how long in seconds) the adolescents can successfully divide their attention between two tasks without making an error (the duration of time they can multi-task without errors). The researcher also measures how long these same individuals can divide their attention between two similar tasks 3 years later, and then measures this another time 6 years later. The researcher proposes that there will be differences in the ability to multi-task and divide one's attention throughout the 6 years tested Based on the above information, select True or False: True/False: The Age of these adolescents after the onset of Puberty is the dependent variable in this data set True False

Answer 1

1) Answer: True 2) Answer: False 3) Answer: True 4) Answer: Ho: U1 = U2=U3 Hj: At least one pair of means significantly differs