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Impact of Digital Audit Case Studies on Students’ Audit Evidence Evaluation Skills in Nigerian Universities

Abstract

The increasing digitalization of business transactions and financial reporting has transformed the nature of audit evidence and created new demands for auditors to evaluate electronic and technology-generated information effectively. Modern audit engagements increasingly involve electronic invoices, digital payment records, computerized accounting systems, cloud-based platforms, electronic audit trails, data analytics, and other forms of digital evidence. Consequently, accounting education students require practical skills to assess the relevance, reliability, sufficiency, authenticity, and appropriateness of audit evidence within technology-driven accounting environments. Digital audit case studies provide an opportunity to expose students to realistic audit scenarios involving electronic records, transaction data, control documentation, analytical results, and potential irregularities. However, conventional audit instruction may provide limited opportunities for students to practise evaluating complex digital evidence. Against this background, this study investigates the impact of digital audit case studies on students' audit evidence evaluation skills in Nigerian universities. The study will be anchored on Experiential Learning Theory, Constructivist Learning Theory, and Human Capital Theory. Experiential Learning Theory emphasizes learning through concrete experience, reflection, conceptualization, and active experimentation, making it suitable for examining how digital audit case studies may develop students' practical evidence-evaluation abilities. Constructivist Learning Theory emphasizes active participation, critical thinking, problem-solving, and knowledge construction through meaningful learning experiences, providing a basis for using realistic digital audit cases to improve students' understanding and application of auditing principles. Human Capital Theory explains how investment in specialized auditing education and practical competencies can improve students' professional knowledge, productivity, employability, and future workplace performance. Collectively, these theoretical perspectives provide a suitable framework for explaining how digital audit case studies may influence students' audit evidence evaluation skills. The study will adopt a quantitative quasi-experimental or analytical cross-sectional research design. The study population will comprise undergraduate and postgraduate accounting education students enrolled in selected public and private universities across Nigeria. A multistage sampling technique will be used to select geopolitical zones, states, universities, faculties or departments, levels of study, and eligible accounting education students. Digital audit case studies will be assessed using indicators such as frequency of case-study exposure, relevance of digital audit scenarios, complexity of cases, electronic audit evidence, digital transaction records, electronic invoices, bank transaction records, computerized accounting reports, audit trails, cloud accounting records, data analytics outputs, internal control documentation, exception reports, fraud indicators, audit procedures, evidence evaluation tasks, case discussions, practical simulations, and lecturer-guided case analysis. Students' audit evidence evaluation skills will be assessed using indicators such as identification of relevant audit evidence, assessment of evidence reliability, evaluation of evidence sufficiency, verification of evidence authenticity, assessment of source credibility, evaluation of electronic records, interpretation of audit trails, analysis of digital transaction data, identification of inconsistencies, assessment of internal control evidence, recognition of potential manipulation, selection of appropriate audit procedures, documentation of evidence evaluation, and ability to reach appropriate audit conclusions. Data will be collected using structured questionnaires, standardized audit evidence evaluation tests, digital audit case studies, electronic evidence analysis exercises, scenario-based questions, simulated audit engagements, observation checklists, and pre-test and post-test assessments where a quasi-experimental intervention is adopted. Descriptive statistics will be used to summarize students' demographic and academic characteristics, exposure to digital audit case studies, practical auditing experiences, and levels of audit evidence evaluation skills. Inferential statistical techniques, including chi-square tests, paired and independent t-tests, correlation analysis, and multiple regression analysis where appropriate, will be used to determine the impact of digital audit case studies on students' audit evidence evaluation skills. Where a quasi-experimental design is adopted, audit evidence evaluation scores before and after exposure to digital audit case studies may be compared with those of a comparison group to determine changes associated with the intervention. Diagnostic tests will also be conducted to assess the reliability, validity, and robustness of the findings. The study is expected to find that digital audit case studies have a significant positive impact on students' audit evidence evaluation skills in Nigerian universities. Students exposed to structured, realistic, and technology-supported digital audit cases are expected to demonstrate stronger abilities to identify relevant evidence, assess reliability and sufficiency, verify electronic records, analyse audit trails, identify inconsistencies, recognize potential manipulation, and reach appropriate audit conclusions than students with limited exposure to digital audit cases. Practical case analysis may help students connect auditing principles with realistic technology-driven audit environments and develop stronger professional judgement. Exposure to diverse digital evidence, including electronic invoices, bank records, computerized accounting reports, transaction logs, and analytical outputs, may also improve students' ability to distinguish reliable evidence from potentially misleading or insufficient information. However, inadequate access to digital audit datasets, limited audit software, unreliable internet connectivity and electricity, insufficient lecturer training, outdated case materials, and limited practical auditing facilities may constrain effective implementation. The study therefore expects current, realistic, interactive, and professionally guided digital audit case studies to contribute significantly to improved audit evidence evaluation skills among accounting education students in Nigerian universities. The study is expected to contribute to the literature on digital audit case studies, audit evidence evaluation skills, accounting education, auditing education, digital auditing, electronic audit evidence, audit analytics, experiential learning, educational technology, and higher education in Nigeria. The findings will provide useful information to the National Universities Commission, universities, faculties of education and management sciences, accounting education departments, accounting educators, professional accounting bodies, audit firms, curriculum developers, educational technology providers, employers, and policymakers regarding strategies for strengthening technology-enabled auditing competencies. The study will also provide evidence-based recommendations for integrating digital audit case studies into auditing courses, developing locally relevant electronic audit evidence scenarios, improving access to digital audit datasets and software, strengthening lecturers' competencies in digital auditing, incorporating simulated audit engagements into accounting education, promoting university-industry collaboration, and preparing accounting education students to evaluate digital audit evidence effectively within Nigeria's increasingly technology-driven auditing environment.

Keywords: Digital audit case studies, audit evidence evaluation skills, accounting education students, digital auditing, electronic audit evidence, auditing education, audit analytics, experiential learning, educational technology, audit evidence, Nigerian universities, Nigeria.