The Olympic Athlete Study A sports psychologist working with an Olympic karate team is investigating the best pre-competition training routine for generic (non-fight related) support exercise. Her sample consists of all the competitors in her national karate team (N=150) and she randomly allocates them into three cohorts. The coach of the first cohort modifies his athlete's support exercises to revolve around Interval training, to build cardiovascular efficiency. The coach of the second cohort changes their support exercises to be entirely Plyometric (for explosive power), whilst the coach for the third cohort maintains their current Cardio regime. The sports psychologist measures their athletic performance by the number of full power punches the Olympian can execute on a training dummy in 30 seconds (measured continuously). She gauges this athletic performance at three time points; prior to starting the modified training routine; at the conclusion of the intervention 4-weeks later; and then another 4-weeks after that, in the off-season. Question: Below is one of the outputs that the sports psychologist has received from her ANOVA. Which of the below statements is an accurate assessment that can be drawn from this output? Tests of Within-Subjects Effects Estimated Marginal Means of MEASURE_1 Measure: MEASURE_1 Type Il Sum Partial Eta Noncent Observed 2 Source of Squares df Mean Square F Sig Squared Paramater Power Time Sphericity Assumed 126.258 2 63120 57.732 000 282 115.464 1.000 ss0 Gresnhouss-Geisser 126,258 1731 72944 57.732 000 282 59928 1000 @ Huynh-Feldt 126.258 1773 a9 57732 000 282 102.387 1000 ws Lower-bound 126,258 1.000 126258 57732 000 282 57.732 1.000 E_ Time *GROUP Sphericity Assumed 151,245 1 7811 34579 000 320 138315 10 o0 Gresnhouse-Geisser 151245 3462 43690 34579 000 320 119704 1000 Huynh-Feldt 151245 3547 42640 34579 000 320 122,650 10 = Lowsr-bound 151,245 2000 75622 34579 000 320 69157 o0 B Error(Time) Sphericity Assumed 321.484 204 1.093 g Greenhouse-Geisser 321484 254442 1.263 W w2 Huynh-Feldt 321484 260704 1233 Lowsr-bound 321484 147.000 2187 oo a Computed using alpha = 05 1 2 3 Time Select one: a. The main effect depicted is largely unimportant in investigating what this sports psychologist is interested in. b. The training interventions were successful because on average participants' performance improved significantly at Time 2, i.e., at the end of the intervention. c. Allof these three options are appropriate conclusions based on the outputs presented. d. After the intervention, participants' performance all levelled off at Time 3, which is understandable because the subsequent 4-week test was during the off-season. However as a whole their performance still remained significantly higher than when they started (at Time 1). Clear my choice