1210.2 Assessment
Research Question (Clear, unambiguous) "Has there been a steady decline in admissions to humanities programs across the United States? What factors might explain this decline, should it exist?"  While the area of interest is clear, the problem statement is clumsy.   Presumably the intent is to ask if the proportion of college graduates with a major in humanity disciplines has declined significantly over the past several decades.  It is not about admissions and it must be size rather than the steadiness of a decline that is the key question.
Relevant Literature The three cited articles seem marginally relevant, but no pointers toward a literature review appear.
Causal Interpretations (clear, all parts defined, mechanisms, controls, plausible) The causal discussion is also awkward, but seems to posit that increased tuition or rising employment in science and technology might be causes of declining humanities enrollments.  What is meant by either increased tuition (relative to what?) or rising employment in science (again, relative to what) is unclear.  We may infer the intent is to suggest that students might choose humanities less if their parents pay more for their education, although why we would expect this is unclear.  Similarly, the aim of the second suggestion seems to be that students' major decisions respond to the labor market, and that rising employment in scientific or technological fields implies an apparent decline in jobs available with humanities degrees, and thus disciplinary shifts.  How one would show these were causes compared to alternative possibilities is neglected.
Data (variables, sample, comparison) As described, the data seem poorly chosen to pursue the research question.
Research Value There is a considerable literature on students' academic choices.  How this might contribute to that literature is unclear.
Overall The project starts with a potentially interesting if vague question about historical change, then falters about transforming it into a research project.