Uji Validitas dan Uji Reliabilitas pada data hasil uji coba soal ujian Biologi Kelas XI materi Sistem Ekskresi dengan jumlah 10 soal dan jumlah responden 20 orang.uji coba soal ujian Biologi Kelas XI MATERI SISTEM EKSKRESI

No RespondenNomor Item (soal)Skor Total

Item 2Item 2Item 3Item 4Item 5Item 6Item 7Item 8Item 9Item 10

101110111118

2111111111110

3111111111110

4111111111110

511110110118

611011111119

711110111119

810111111119

9111111111110

1011101101107

1111011101118

1201111111119

1301011010004

1411110111119

1501010000002

1610110111118

17111111111110

1811111110018

19111111111110

20111111111110

Uji Validitas dan Uji Reliabilitas dengan SPSS

UJI VALIDITAS Correlations

Item_1Item_2Item_3Item_4Item_5Item_6Item_7Item_8Item_9Item_10Skor_total

Item_1Pearson Correlation1-,167,375-,115,218,667**,140,375,490*,490*,651**

Sig. (2-tailed),482,103,630,355,001,556,103,028,028,002

N2020202020202020202020

Item_2Pearson Correlation-,1671-,167-,076,145-,111-,140-,167-,140-,140-,016

Sig. (2-tailed),482,482,749,541,641,556,482,556,556,945

N2020202020202020202020

Item_3Pearson Correlation,375-,1671-,115-,055,667**,490*,375,490*,490*,651**

Sig. (2-tailed),103,482,630,819,001,028,103,028,028,002

N2020202020202020202020

Item_4Pearson Correlation-,115-,076-,1151-,150-,076,546*-,115-,096,546*,158

Sig. (2-tailed),630,749,630,527,749,013,630,686,013,506

N2020202020202020202020

Item_5Pearson Correlation,218,145-,055-,1501,145,031,218,031,031,343

Sig. (2-tailed),355,541,819,527,541,898,355,898,898,138

N2020202020202020202020

Item_6Pearson Correlation,667**-,111,667**-,076,1451,327,667**,793**,793**,885**

Sig. (2-tailed),001,641,001,749,541,160,001,000,000,000

N2020202020202020202020

Item_7Pearson Correlation,140-,140,490*,546*,031,3271,140,216,608**,564**

Sig. (2-tailed),556,556,028,013,898,160,556,361,004,010

N2020202020202020202020

Item_8Pearson Correlation,375-,167,375-,115,218,667**,1401,840**,490*,713**

Sig. (2-tailed),103,482,103,630,355,001,556,000,028,000

N2020202020202020202020

Item_9Pearson Correlation,490*-,140,490*-,096,031,793**,216,840**1,608**,771**

Sig. (2-tailed),028,556,028,686,898,000,361,000,004,000

N2020202020202020202020

Item_10Pearson Correlation,490*-,140,490*,546*,031,793**,608**,490*,608**1,840**

Sig. (2-tailed),028,556,028,013,898,000,004,028,004,000

N2020202020202020202020

Skor_totalPearson Correlation,651**-,016,651**,158,343,885**,564**,713**,771**,840**1

Sig. (2-tailed),002,945,002,506,138,000,010,000,000,000

N2020202020202020202020

**. Correlation is significant at the 0.01 level (2-tailed).*. Correlation is significant at the 0.05 level (2-tailed).

SYARAT UJI VALIDITAS Menurut SugiyonoItem soal di katakan valid jika r hitung > 0,3Item soal di katakan tidak valid/ gugur jika r hitung < 0,3

Nomor Soal R hitungSyaratKeterangan

Item 10,651> 0,3Valid

Item 20,016< 0,3Tidak Valid

Item 30,651< 0,3Tidak Valid

Item 40,158> 0,3Valid

Item 50,343> 0,3Valid

Item 60,885> 0,3Valid

Item 70,564> 0,3Valid

Item 80,713> 0,3Valid

Item 90,771> 0,3Valid

Item 100,840> 0,3Valid

Dari hasil uji Validitas, dapat disimpulkan bahwa : Item soal nomor 2 dan 3 dinyatakan tidak valid sehingga harus diganti atau dibuang. Item soal Nomor 1,4,5,6,7,8,9,10 dinyatakan valid sehingga bisa digunakanHASIL UJI RELIABILITASReliabilityNotes

Output Created10-Mei-2015 15:04:14

Comments

InputActive DatasetDataSet0

Filter

Weight

Split File

N of Rows in Working Data File20

Matrix Input

Missing Value HandlingDefinition of MissingUser-defined missing values are treated as missing.

Cases UsedStatistics are based on all cases with valid data for all variables in the procedure.

SyntaxRELIABILITY /VARIABLES=Item_1 Item_2 Item_3 Item_4 Item_5 Item_6 Item_7 Item_8 Item_9 Item_10 /SCALE('ALL VARIABLES') ALL /MODEL=ALPHA /SUMMARY=TOTAL.

ResourcesProcessor Time00 00:00:00,047

Elapsed Time00 00:00:00,037

Scale: ALL VARIABLES

RELIABILITY /VARIABLES=Item_1 Item_2 Item_3 Item_4 Item_5 Item_6 Item_7 Item_8 Item_9 Item_10 /SCALE('ALL VARIABLES') ALL /MODEL=ALPHA /SUMMARY=TOTAL.Case Processing Summary

N%

CasesValid20100,0

Excludeda0,0

Total20100,0

Reliability Statistics

Cronbach's AlphaN of Items

,76210

Item-Total Statistics

Scale Mean if Item DeletedScale Variance if Item DeletedCorrected Item-Total CorrelationCronbach's Alpha if Item Deleted

Item_17,603,411,514,729

Item_27,504,474-,162,805

Item_37,603,411,514,729

Item_47,454,261,051,777

Item_57,703,905,125,794

Item_67,503,316,845,693

Item_77,553,629,426,742

Item_87,603,305,593,717

Item_97,553,313,683,706

Item_107,553,208,774,692

HASIL ANALISIS DATA UJI RELIABILITASNomor SoalR hitungSyaratKeterangan

Item 10,729>0,6Reliabel

Item 20,805>0,6Reliabel

Item 30,729>0,6Reliabel

Item 40,777>0,6Reliabel

Item 50,794>0,6Reliabel

Item 60,693>0,6Reliabel

Item 70,742>0,6Reliabel

Item 80,717>0,6Reliabel

Item 90,706>0,6Reliabel

Item 100,692>0,6Reliabel

Dari analisis data uji Reliabilitas dapat disimpulkan, bahwa :Item soal nomor 1 sampai 10 semuanya Reliabel.Kriteria reliabilitas didapatkan dari Croanbachs Alpha adalah apabila didapatkan nilai Croanbachs Alpha kurang dari 0,600 berarti buruk, sekitar 0,700 diterima dan lebih dari atau sama dengan 0,800 adalah baik.