KR 20 dan KR 21

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