The aim of this article was to develop a model for the usage of Open Access Institutional Repositories (OAIR) in university libraries in Ghana. The article adopted the Technology Acceptance Model (TAM), which was then modified to fit the study. The variables were adapted to improve the fit between data and the theoretical model, keeping the characteristics of TAM. Accessibility, availability and visibility were proposed in addition to the conventional variables of TAM. Positivist paradigm, quantitative methods research and survey design were used for the study. Simple random sampling and stratified random sampling were the sampling procedures and methods employed. A total of 998 respondents completed the questionnaires distributed. The questionnaire was used as a research instrument to gather relevant data for the study. Descriptive statistics (frequencies, percentages, means and standard deviation) and inferential statistics (multinomial logistic regression and Confirmatory Factor Analysis [CFA], using structural equation modelling [SEM]) were used as statistical tools to analyse the data. The study developed an OAIR Usage Model, which would be instrumental in the usage of OAIR in university libraries in Ghana. The model will enhance both user satisfaction and intention to reuse the OAIR, and make OAIR research outputs available, accessible and visible. This article adds to the body of literature on OAIR, as it is used in university libraries.

本文的目的是开发一个模型，供加纳的大学图书馆使用开放存取机构存储库（OAIR）。本文采用了技术接受模型（TAM），然后对其进行了修改以适合本研究。调整变量以提高数据与理论模型之间的拟合度，同时保留TAM的特征。除了TAM的常规变量之外，还提出了可访问性，可用性和可见性。实证主义范式，定量方法研究和调查设计被用于研究。简单随机抽样和分层随机抽样是采用的抽样程序和方法。共有998位受访者完成了分发的问卷。问卷被用作研究工具，以收集有关研究的数据。描述性统计数据（频率，百分比，均值和标准差）和推理统计数据（多项式逻辑回归和确认性因子分析[CFA]，使用结构方程模型[SEM]）被用作统计工具来分析数据。该研究开发了一个OAIR使用模型，该模型将有助于加纳大学图书馆中OAIR的使用。该模型将提高用户满意度和重用OAIR的意图，并使OAIR研究输出可用，可访问和可见。本文增加了有关OAIR的文献资料，因为它在大学图书馆中使用。使用结构方程模型[SEM]）作为统计工具来分析数据。该研究开发了一个OAIR使用模型，该模型将有助于加纳大学图书馆中OAIR的使用。该模型将提高用户满意度和重用OAIR的意图，并使OAIR研究输出可用，可访问和可见。本文增加了有关OAIR的文献资料，因为它在大学图书馆中使用。使用结构方程模型[SEM]）作为统计工具来分析数据。该研究开发了一个OAIR使用模型，该模型将有助于加纳大学图书馆对OAIR的使用。该模型将提高用户满意度和重用OAIR的意图，并使OAIR研究输出可用，可访问和可见。本文增加了有关OAIR的文献资料，因为它在大学图书馆中使用。