Despite its advantages, the VAS has limitations. One key limitation is the potential for bias due to its subjective nature. Participants' markings can be influenced by various factors, including their understanding of the scale and cultural differences. Additionally, some individuals may find it challenging to conceptualize their experiences on a linear continuum, leading to inaccurate data representation. Furthermore, the VAS may not be suitable for all populations, such as children or individuals with cognitive impairments.
