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Kuder and Richardson Formula 20 dan 21
No Item SoalA1 A2 A3 A4 A5 A6 A7 A8
1 1 1 1 1 1 1 1 1
2 1 0 1 1 1 1 1 1
3 1 0 1 1 1 1 1 1
4 0 1 0 0 0 1 0 1
5 1 0 1 1 1 0 1 1
6 0 0 0 0 1 0 1 0
7 1 1 1 1 0 1 1 0
8 1 1 1 0 1 0 1 1
9 0 1 0 1 1 0 0 0
10 1 0 0 1 0 1 1 0
11 1 1 1 0 1 0 1 1
12 1 0 0 1 0 0 0 0
Total 9 6 7 8 8 6 9 7
p 0.75000 0.50000 0.58333 0.66667 0.66667 0.50000 0.75000 0.58333
q 0.25000 0.50000 0.41667 0.33333 0.33333 0.50000 0.25000 0.41667
pq 0.18750 0.25000 0.24306 0.22222 0.22222 0.25000 0.18750 0.24306
k 30
Anwar Hidayat
http://www.statistikian.com
Σpq 2.50000
Anwar Hidayatvar 7.63889Mean 6.83333
ρ (KR 20) 0.69592ρ (KR 21) 0.31987
Kuder and Richardson Formula 20 dan 21
Item SoalA9 A10 A11 A12 A13 A14 A15 A16 A17 A181 1
0 1
1 0
1 0
1 1
0 0
1 1
1 0
0 1
1 0
1 1
0 0
8 6
0.66667 0.50000
0.33333 0.50000
0.22222 0.25000
Anwar Hidayat
http://www.statistikian.com
Anwar Hidayat
Kuder and Richardson Formula 20 dan 21
Item SoalA19 A20 A21 A22 A23 A24 A25 A26 A27 A28
Anwar Hidayat
http://www.statistikian.com
Anwar Hidayat
Kuder and Richardson Formula 20 dan 21
Item SoalA29 A30 Total
1 11
1 9
0 8
1 5
1 9
0 2
1 9
0 7
1 5
1 6
1 9
0 2
8 82
0.66667
0.33333
0.22222
Anwar Hidayat
Anwar Hidayat