An experiment was conducted to examine the performance (as measured by the number of errors made) on a motor skills task. Twenty-four subjects (12 young and 12 old) were assigned to either an easy or...


An experiment was conducted to examine the performance (as measured by the number of errors made) on a motor skills task. Twenty-four subjects (12 young and 12 old) were assigned to either an easy or hard motor skills task.  There were two factors in the study: age (young/old) and difficulty of the motor skills task (easy/hard). The number of errors made on the motor skills task was recorded for each person and is presented in the table below.



Null and Alternative Hypotheses:


H0: There is not an interaction between young and old


H0: µYoung = µOld


H1: There is an interaction between young and old


H1: µYoung ≠ µOld


H0: There is not an interaction between easy and hard


H0: µEasy = µHard


H1: There is an interaction between young and old


H1: µEasy ≠ µHard


H0: There is not an interaction between age and difficulty


H0: µAge = µDifficulty


H1: There is an interaction between age and difficulty.


H1: µAge ≠ µDifficulty




I need the partial η2 scores for this, they are all bellow



F(1, 20) = 21.16, p (= 0.00017) < 0.05,="">
η 2 = ?


Young (M = 5.92, SD = 2.23) Old (M = 9.5, SD = 4.21)


F(1, 20) = 42.57, p (= 0.000002) < 0.05,="">
η 2 = ?


Easy (M = 5.17 SD = 1.95) Hard (M = 10.25, SD = 3.44)


F(1, 20) = F(1, 20) = 6.05, p (= 0.0231) < 0.05,="" p="" ,="">
η 2 = ?


Difficulty<br>Easy<br>Hard<br>5<br>7<br>3<br>5<br>8<br>Age<br>Young<br>9<br>4<br>9<br>6.<br>7<br>6<br>10<br>7<br>11<br>6<br>14<br>Age<br>Old<br>5<br>15<br>3<br>12<br>16<br>

Extracted text: Difficulty Easy Hard 5 7 3 5 8 Age Young 9 4 9 6. 7 6 10 7 11 6 14 Age Old 5 15 3 12 16

Jun 09, 2022
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