The analysis of source code dependencies among components is an important task in software development. Despite the proliferation of software visualization tools designed to facilitate this task, most are limited to desktop applications, leaving the potential of augmented reality (AR) to enhance dependency analysis largely unexplored. This paper evaluates DGT-AR, an innovative node-link visualization tool that employs immersive augmented reality to represent code dependencies. DGT-AR extends the integrated development environment (IDE) by incorporating a spatially extended visualization area, allowing developers to manage dependencies without sacrificing screen space or resorting to external applications. In the controlled experiment conducted, 36 participants performed dependency analysis tasks using augmented reality and desktop environments. According to the results, it was observed that the environment does not significantly influence workload, efficiency, efficacy, or usability during the dependency analysis of the source code. These findings suggest that AR can support code-level dependency analysis as effectively as desktop settings, motivating future work to investigate whether its spatial capabilities offer clearer advantages for analyzing larger or more complex systems.