Final answer:
Janaki's process of compiling and summarizing peer-reviewed journal articles before planning her research methodology is best described as a literature review.
Step-by-step explanation:
The process Janaki is set to undertake before developing her research methodology for studying the personality traits and presentation styles in cyberbullying is called a literature review. This involves systematically compiling and summarizing peer-reviewed journal articles and other relevant academic sources. During the literature review, she will seek to identify gaps in the current research, thereby understanding the academic terrain of cyberbullying and related areas like the bystander effect, aggression, and victimization across platforms. This step is crucial as it educates researchers on the current state of knowledge and strengthens the quality of their own methodology and eventual findings by building on existing research.