2. An educator wants to determine whether early exposure school will affect IQ. He enlists the aid of the parents of 12 pairs of pre-school-age identical twins who agree to let their twins participate...

Extracted text: 2. An educator wants to determine whether early exposure school will affect IQ. He enlists the aid of the parents of 12 pairs of pre-school-age identical twins who agree to let their twins participate in the experiment. One member of each twin pair is enrolled in preschool for 2 years while the other member of each pair remains at home. At the end of 2 years, the IQs of all the children are measured. The results follow: (Pagano, 2010) If proved significant, compute of the effect size. IQ Twins at home Pair Twins at preschool 1 110 114 2 121 118 3 107 103 4 117 112 115 117 6 112 106


Extracted text: 7 130 125 8 116 113 9. 111 109 10 120 122 11 117 116 12 106 104