A Clinical Neuropsychologist Develops a New Treatment for Recovery from Head

Multiple Choice

A clinical neuropsychologist develops a new treatment for recovery from head trauma and administers it to one half (randomly selected) of a sample of 50 people.He measures the level of cognitive functioning one month after the trauma and analyses the data in SPSS.The output of a between-participant t-test is shown below: Which of the following statements is true?

A) A measure of effect size called d can be constructed using t and the df.
B) A measure of effect size called r can be constructed using t and the df.
C) The effect here will be large because the effect is highly significant with F = 11.364 and p = .001.
D) The effect here will be large because the effect is highly significant with t (48) = 5.744 and p < .001.
E) The effect here will be large because the effect is highly significant with t (37.363) = 5.744 and p < .001.