A bar graph comparing institutions with and without accessibility policies on various measures of accessibility. Those measures on which there is a significant difference between the two groups (p<.001) include:

• Images have alt text (with policy = 72%, without policy = 59%)
• Overall accessibility (with policy = 50%, without policy = 43%)
• Labeled input fields (with policy = 53%, without policy = 39%)
• Accessibility link on home page (with policy = 34%, without policy = 5%)
• PDFs are tagged (with policy = 28%, without policy = 34%)

There is only a slight difference (p<.05) on use of LANG attribute (with policy = 42%, without policy = 37%), and no significant difference on HTML headings (with policy = 80%, without policy = 78%) or ARIA landmarks (with policy = 4%, without policy = 3%)