A researcher in the area of cognitive functioning has designed a new test of creativity, called the CIA test (Cognitive Information Assessment). A random sample of ten, five-year-old children is selected and given the test. A week later the same test was administered for a second time. Estimate the reliability of this test. $$\begin{array} { l c c c }
\text { Subject \# } & &\text { Test } & \text { Retest } \
& & \mathrm { X } & \mathrm { Y } \
1 & \cdot & 30 & 33 \
2 & \cdot & 10 & 15 \
3 & \cdot & 20 & 18 \
4 & \cdot & 18 & 20 \
5 & . & 22 & 16 \
6 & . & 23 & 21 \
7 & . & 17 & 15 \
8 & \cdot & 20 & 22 \
9 & . & 25 & 28 \
10 & . & 15 & 15
\end{array}$$

Question

A researcher in the area of cognitive functioning has designed a new test of creativity, called the CIA test (Cognitive Information Assessment). A random sample of ten, five-year-old children is selected and given the test. A week later the same test was administered for a second time. Estimate the reliability of this test. $$\begin{array} { l c c c } 
\text { Subject \# } & &\text { Test } & \text { Retest } \
& & \mathrm { X } & \mathrm { Y } \
1 & \cdot & 30 & 33 \
2 & \cdot & 10 & 15 \
3 & \cdot & 20 & 18 \
4 & \cdot & 18 & 20 \
5 & . & 22 & 16 \
6 & . & 23 & 21 \
7 & . & 17 & 15 \
8 & \cdot & 20 & 22 \
9 & . & 25 & 28 \
10 & . & 15 & 15
\end{array}$$

Quizplus · Accepted Answer

The Answer of A researcher in the area of cognitive functioning has designed a new test of creativity, called the CIA test (Cognitive Information Assessment). A random sample of ten, five-year-old children is selected and given the test. A week later the same test was administered for a second time. Estimate the reliability of this test. $$\begin{array} { l c c c } 
\text { Subject \# } & &\text { Test } & \text { Retest } \
& & \mathrm { X } & \mathrm { Y } \
1 & \cdot & 30 & 33 \
2 & \cdot & 10 & 15 \
3 & \cdot & 20 & 18 \
4 & \cdot & 18 & 20 \
5 & . & 22 & 16 \
6 & . & 23 & 21 \
7 & . & 17 & 15 \
8 & \cdot & 20 & 22 \
9 & . & 25 & 28 \
10 & . & 15 & 15
\end{array}$$

A Researcher in the Area of Cognitive Functioning Has Designed