M1 M1 • • • G Power 2 • p • 3 • p – • 10 1000 4 • A B r=0.2 =10 0 p=.58 =1000 =1000 <.000 =98 .048 r=0 2 !! 5 r=0.2 !! • ( ) ( ) ( ) • 6 d d • – – • p p 7 t t – 1 t μ μ 0 − 0 0 : μ μ = H σ μ μ 0 = d – t 2 1 0 : μ μ = H μ μ σ μ μ 1 2 − = d 2 σ 2 2 8 • Cohen(1988) – 9 = 2 f • • (strength of association) – 10 • • 2 η 2 η × F 2 2 + × × F F η • 2 ω 2 ε 11 • ( ) • – • 12 H0 H1 H0 (1-α) (β) ( ) (β) H1 (α