Iri a sludy published years ago in a repulable psychology journal, resechers rep

Question

Iri a sludy published years ago in a repulable psychology journal, resechers reporled hal wher students were given a spalil easoning section of a slandad Q les,hose wo lisleried lo a parlicular cornposer's wurks for 10 riules improved lheir sco more than those who simply sat quietly. Complete parts through d below Click the 'con to view the three boxplots tor part C a) These researchers said the differences were statistically significant Explain what that means in context. Choose the correct answer below A. The differences among the composer nd quiet groups were more than would have been expected from sampling variation O B. The differences showed that it was important to listen to the composer when taking an IQ test. C. Finding the differences was important to the process of calculating statstics about the composer and quiet groups O D. The ditterences showed that it was important to sit in silence when taking an lO test b) Another group of researchers tried to replicate the original study In their study, published in the same journal, the subjacts were 125 college students who participated in the experiment for course credit Subjects first took the test. Then they were assigned to one of three groups listening to a piano sonata from the cassical cmpaser (Composer A) listening to music from another composer(pser B), and siting for 10 minutes in silence Three days ater the treatments, they were retested Draw a diagram dsplaying the dosign of this cxpeniment. Choosc the coroct ansiwer bclow. A. O B. Composer B Musc Composer B Musc Compoeer-> Pretest- Post-test A 5om3t Composer- A Somata Pretest ?ost-test

Explanation / Answer

a ) A ) The differences among the composer and the quiet groups were more than would have been expected from sampling variation .

The correct option is ( A ) .

b ) The correct option is ( B ) .

c ) The correct option is ( A ) .

d ) The correct option is ( A ) .

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