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Validity and Reliability of Chemical Test Instruments for Acid and Base Solutions Oriented Generic Skills Science

Journal of Research and Educational Research Evaluation · Vol. 11 No. 1 (2022) · pp. 1–8

DOI
10.15294/jere.v11i1.55450
ISSN
2503-1732, 2252-6420
Published
2022-03-30
Publisher
Universitas Negeri Semarang
Language
eng

Abstract

The 2013 curriculum prioritizes the generic skills needed in science learning. Generic science skills require valid and reliable measuring tools. The purpose of this research is to reveal validity and reliability Chemical test instruments oriented to generic science skills on acid and base solutions. The subjects used were 35 students for the small class test and 125 students for the large class test. The method used is the quantitative method in the form of questionnaire sheets and KGS-oriented acid-base chemistry questions. Construct validity using confirmatory first order analysis. Interterrater reliability using 3 raters and tested using two-way annova with Ebel formula. The reliability of the large class test used the cronbach alpha formula. content validity of each item in each 81.25% eligible category. Construct validity seen from the item polarity of the items has a positive Point Measure Correlation (Pt. Mea-Corr). A total of 32 items have a strong or high correlation number. Three questions, namely item number 23 (0.57), 27 (0.49), and 33 (0.67) have a moderate correlation. Reliability between expert raters was analyzed using the Ebel formula resulting in 0.79 which was in the currently category. Small class test reliability 0.97 high category. The reliability of the large class test item reliability is 0.90, personal reliability is 0.94, and the KR-20 is 0.99 which is classified as high. Thus, the level of generic science ability that has been tested for validity and Reliability can be used by educators to determine the level of students' generic science abilities.

Collaboration network of the authors

40 authors · 216 co-authorship links · 19 across different organisations · showing the 40 most connected

Hover or tap a name to highlight its co-authors. Double-click to open the author's page.

  • State University of Semarang
  • Sebelas Maret University
  • Universitas Airlangga
  • Walisongo State Islamic University
  • National University of Malaysia
  • Universiti Teknologi MARA
  • Affiliation unknown
  • Different organisations
  • Same organisation
  • Affiliation unknown
  • Thicker line = more joint articles · bigger circle = more articles
Show as table
Co-authorOrganisationJoint articles
Sri HaryaniAffiliation unknown11
Sigit PriatmokoState University of Semarang8
Sri WardaniState University of Semarang6
Nanik WijayatiState University of Semarang6
Sri NurhayatiState University of Semarang5
Kasmui KasmuiState University of Semarang5
Supriyadi SupriyadiAffiliation unknown5
Murbangun NuswowatiState University of Semarang4
Eko Budi SusatyoAffiliation unknown4
Supartono SupartonoAffiliation unknown4
Jumaeri JumaeriAffiliation unknown4
Kasmadi Imam SupardiState University of Semarang4
Agung Tri PrasetyaState University of Semarang4
Sri Susilogati SumartiState University of Semarang4
Ani RusilowatiState University of Semarang4
Harjito HarjitoAffiliation unknown3
Woro SumarniState University of Semarang3
Edy CahyonoState University of Semarang3
Triastuti SulistyaningsihAffiliation unknown3
Apriliana DrastisiantiWalisongo State Islamic University2
Yosephine Debbie DamayantiAffiliation unknown2
Sudarmin SudarminAffiliation unknown2
Harjono HarjonoAffiliation unknown2
Cepi KurniawanState University of Semarang2
Saiful RidloState University of Semarang2
Achmad BinadjaAffiliation unknown2
Azza Khisnu AddianiAffiliation unknown2
Sri Susilogati SumartiAffiliation unknown2
Muhammad KhumaediAffiliation unknown2
Budi AstutiAffiliation unknown2
Agus YuliantoAffiliation unknown2
Sharipah Ruzaina Syed ArisUniversiti Teknologi MARA1
Isnaini Putri SalimnahState University of Semarang1
HarjonoState University of Semarang1
Lilia Ellany MohtarNational University of Malaysia1
L. LastriState University of Semarang1
E. KusumoState University of Semarang1

Affiliations come from OpenAlex; journal OAI-PMH metadata carries none. Authors without an OpenAlex ID are matched by name, which can merge or split people.

Metadata source: OAI-PMH (metadata jurnal) https://journal.unnes.ac.id/sju/index.php/jere/oai, first harvested 6 Nov 2026, last seen 6 Nov 2026.
Original metadata (oai_dc) 
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	<dc:title xml:lang="en-US">Validity and Reliability of Chemical Test Instruments for Acid and Base Solutions Oriented Generic Skills Science</dc:title>
	<dc:creator>Riza, Muhammad</dc:creator>
	<dc:creator>Kartono, Kartono</dc:creator>
	<dc:creator>Susilaningsih, Endang</dc:creator>
	<dc:description xml:lang="en-US">The 2013 curriculum prioritizes the generic skills needed in science learning. Generic science skills require valid and reliable measuring tools. The purpose of this research is to reveal validity and reliability Chemical test instruments oriented to generic science skills on acid and base solutions. The subjects used were 35 students for the small class test and 125 students for the large class test. The method used is the quantitative method in the form of questionnaire sheets and KGS-oriented acid-base chemistry questions. Construct validity using confirmatory first order analysis. Interterrater reliability using 3 raters and tested using two-way annova with Ebel formula. The reliability of the large class test used the cronbach alpha formula. content validity of each item in each 81.25% eligible category. Construct validity seen from the item polarity of the items has a positive Point Measure Correlation (Pt. Mea-Corr). A total of 32 items have a strong or high correlation number. Three questions, namely item number 23 (0.57), 27 (0.49), and 33 (0.67) have a moderate correlation. Reliability between expert raters was analyzed using the Ebel formula resulting in 0.79 which was in the currently category. Small class test reliability 0.97 high category. The reliability of the large class test item reliability is 0.90, personal reliability is 0.94, and the KR-20 is 0.99 which is classified as high. Thus, the level of generic science ability that has been tested for validity and Reliability can be used by educators to determine the level of students' generic science abilities.</dc:description>
	<dc:publisher xml:lang="en-US">Universitas Negeri Semarang</dc:publisher>
	<dc:date>2022-03-30</dc:date>
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	<dc:identifier>https://journal.unnes.ac.id/sju/jere/article/view/55450</dc:identifier>
	<dc:identifier>10.15294/jere.v11i1.55450</dc:identifier>
	<dc:source xml:lang="en-US">Journal of Research and Educational Research Evaluation; Vol 11 No 1 (2022); 1-8</dc:source>
	<dc:source>2503-1732</dc:source>
	<dc:source>2252-6420</dc:source>
	<dc:source>10.15294/jere.v11i1</dc:source>
	<dc:language>eng</dc:language>
	<dc:relation>https://journal.unnes.ac.id/sju/jere/article/view/55450/21516</dc:relation>
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