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Evaluating Misconceptions in the Representation of Mendelian Genetic Inheritance in High School Biology Textbooks Kusniawati, Kusniawati; Candramila, Wolly; Wahyuni, Eko Sri
Tropical Genetics Vol. 5 No. 2 (2025): Genetics
Publisher : Genetikawan Muda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/tg.v5i2.107

Abstract

Genetics learning is prone to misconceptions due to complex concepts, abstract reasoning, and inconsistencies in textbook presentations, which can hinder students’ understanding of inheritance patterns such as Mendelian genetics. This study analyzes the potential misconceptions in high school biology textbooks regarding Mendel’s Laws and dominance–recessive inheritance using Dikmenli et al.’s categorization, aiming to provide references for teachers in selecting and supplementing instructional materials. This is a descriptive qualitative research using content analysis method. Four textbooks, selected through a survey of biology teachers in Pontianak City, were analyzed by comparing key concepts in the textbooks with scientifically accurate explanations from authoritative references. The findings were systematically examined, categorized, and validated through member-checking to ensure accuracy, highlighting the most common types of misconceptions in the textbooks. The analysis revealed variations in the coverage and accuracy of 13 key concepts related to Mendel’s Laws and dominance–recessive inheritance, with Books A–C containing several potential misconceptions while Book D showed none. The most frequent types of misconceptions identified were misidentifications, followed by oversimplifications and overgeneralizations, often involving definitions of gene, genotype, phenotype, and independent assortment. These findings highlight the importance of accurate textbook content and suggest that educators must critically evaluate and clarify textbook explanations to prevent persistent misunderstandings in students’ conceptual understanding of genetics.
Analysis of Investor Reactions to the Launch of Super Holding Danantara: Event Study on Shares of Danantara Member State-Owned Enterprises Fadila, Nuriya; Kusniawati, Kusniawati; Sarah, Sriwahyuni; Habbe, Abdul Hamid; Bandang, Agus
Dinasti International Journal of Digital Business Management Vol. 7 No. 1 (2025): Dinasti International Journal of Digital Business Management (December 2025 - J
Publisher : Dinasti Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/dijdbm.v7i1.6054

Abstract

This study analyzes the capital market reaction to the announcement of the formation of the Danantara Investment Management Agency (BPI) on February 24, 2025. Using an event study method with an 11-day observation window (t-5 to t+5) on the shares of 11 Danantara-member state-owned enterprises (SOEs), the study found a negative market response. This was evidenced by a consistent decline in Cumulative Average Abnormal Return (CAAR) to -5.63%, indicating short-term wealth destruction. Although a paired sample t-test showed no significant difference between abnormal returns before and after the event, the persistent downward price trend indicates pre-announcement information leakage and high investor skepticism regarding the governance risks of the new SOE structure
The Effect of Polkesban Compression Simulator (PKS) on the Ability of Cardio Pulmonar Resuscitation (CPR) wasliyah, siti wasliyah; Kusniawati, Kusniawati; Fadillah, Lailatul
Jurnal Menara Pengabmas Vol. 1 No. 1 (2023): Jurnal Menara Pengabmas
Publisher : POLTEKKES KEMENKES BANTEN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36743/jmp.v1i1.492

Abstract

Out-Hospital Cardiac Arrest (OHCA) merupakan suatu kejadian henti jantung yang terjadi di luar rumah sakit. Pasien yang mengalami OHCA mengandalkan masyarakat untuk memberikan dukungan sebagai orang terdekat saat serangan terjadi. Metode pelatihan dengan simulasi dinilai sebagai salah satu metode yang paling efektif dan paling sering digunakan dalam mengajarkan tindakan RJP. Pada pelaksanaan simulasi dibutuhkan media yang sesuai yaitu berupa phantom yang telah didesain sedemikian rupa menyerupai keadaan manusia. Media phantom dinilai lebih mahal dan kurang efisien apabila digunakan sebagai media outdoor, sehingga penelitian ini memberikan alternatif media pengganti dalam simulasi pelatihan RJP berupa Polkesban Kompresi simulator. Penelitian ini adalah penelitian kuasi eksperimen dengan pendekatan pretest and postets group design, bertujuan untuk mengidentifikasi pengaruh Polkesban Kompresi Simulator Terhadap Kemampuan Melakukan RJP Pada Siswa Sekolah Menengah Atas (SMA) di kota Tangerang. Penelitian dilakukan pada bulan Juni - Nopember 2019 dengan populasi siswa SMA Kota Tangerang. Metode sampling yang digunakan adalah Consecutive sampling berjumlah 50 orang. Hasil penelitian didapatkan terdapat peningkatan kemampuan pada masing-masing kelompok intervensi dan kontrol, dan terdapat perbedaan yang signifikan pada pengukuran sebelum dan setalah dilakukan intervensi (P value 0,000). Pada uji statistik kedua kelompok didapatkan nilai p value 0,016 (P value ≤ 0,005), sehingga dapat disimpulkan terdapat perbedaan rerata yang signifikan antara kelompok phantom dan kelompok PKS, dimana rata-rata kelompok PKS lebih tinggi dari kelompok Phantom.