Pembelajaran Kooperatif Tipe Stad\LAMPIRAN\Lampiran 8

88

Lampiran 8

RELIABILITAS SKOR TES

No

. Nama Siswa

Nomor Soal skor

total _{Skor total}Kuadrat

1 2 3 4 5

1 Achmadi sholeh 9 8 10 20 18 65 4.225

2 _{Ahmad fikri rahman} 15 13 12 20 _{15 75 5.625}

3 Albab qortobi 15 10 20 15 10 70 4.900

4 Ani septiawati 15 10 20 13 25 83 6.889 5 Ayunda triana laurensia 8 15 15 20 10 68 4.624 6 _{Dandi septia rohnab} 8 15 10 15 _{20 68 4.624} 7 _{Denny ashariadi} 10 15 20 20 18 83 6.889

8 Dewi agustina 15 15 15 20 20 85 7.225

9 Diniatul islami 5 15 5 20 20 65 4.225

10 _{Endang yuliani} 15 10 7 20 _{30 82 6.724} 11 _{Erwin cahya melanda} 15 15 18 20 25 93 8.649 12 Fitriyani dewi hartatik 8 15 12 20 15 70 4.900

13 Legiya wati 15 15 12 20 30 92 8.464

14 _{M. panji akbariman} 12 15 20 20 _{20 87 7.569}

15 _Mardiana 15 15 10 20 22 82 6.724

16 Maskuri 5 5 15 5 15 45 2.025

17 Meri utami 10 15 15 20 10 70 4.900

18 _{Moh . firdaus H. N.} 15 15 20 20 _{30 100 10.000} 19 _{Moh. Gaftan alfauzi} 15 10 20 20 30 95 9.025 20 Mohammad ibrahim 15 15 17 20 30 97 9.409

21 Nur faizah 5 15 10 20 20 70 4.900

22 _{Nur kholizah} 15 15 20 20 _{30 100 10.000}

23 _{Nurul hasanah} 7 10 10 20 15 62 3.844

24 Rahmad farah mana 12 10 11 20 10 63 3.969 25 Susi indriyani 12 5 10 15 15 57 3.249

26 _{Tomi arsana} 15 15 15 20 _{30 95 9.025}

Jumlah 306 331 369 483 533 2022 162.602,00

Varians tiap butir soal

σ2(i)=

∑

x2−

(

∑

x

)

2

89

3.954−93.636 26

26 =

3.954−3.601,38

26 =

352,6

26 =13,56

σ2(2)=

4.483−(331) 2

26

26 =

4.483−109.561 26

26 =

4.483−4.213,88

26 =

269,12

26 =10,35

σ2(3)=

5.765−(369) 2

26

26 =

5.765−136.161 26

26 =

5.765−5.236,96

26 =

528,04

26 =20,03

σ2

9.269−233.289 26

12.207−284.089 26

26 =

12.207−10.926,5

26 =

1.280,5

26 =49,25

Jumlah varians skor tiap butir soal

∑

σb

2

=13,56+10,35+20,03+11,4+49,25=104,59

Varians total

σ_t2=

∑

162.602−4.088 .484 26

26 =

162.602−157.249,38

26 =

5.352,6

26 =205,87

Reliabilitas tes

r11=

(

Hasil Interpretasi ke tabel