  Accessibility research has grown substantially in the past few decades, yet
there has been no literature review of the field. To understand current and
historical trends, we created and analyzed a dataset of accessibility papers
appearing at CHI and ASSETS since ASSETS' founding in 1994. We qualitatively
coded areas of focus and methodological decisions for the past 10 years
(2010-2019, N=506 papers), and analyzed paper counts and keywords over the full
26 years (N=836 papers). Our findings highlight areas that have received
disproportionate attention and those that are underserved--for example, over
43% of papers in the past 10 years are on accessibility for blind and low
vision people. We also capture common study characteristics, such as the roles
of disabled and nondisabled participants as well as sample sizes (e.g., a
median of 13 for participant groups with disabilities and older adults). We
close by critically reflecting on gaps in the literature and offering guidance
for future work in the field.
