Impact for Practitioners

Our research did not produce significant results. We still believe our current hypothesis will hold under further testing.

Sugestions for Further Researchers

For our experiment, we asked subjects to visit a small number of web pages, then revisit these pages to answer questions using information contained in them. This procedure does not simulate a realistic situation. Visiting a larger number of pages may achieve a more realistic situation and thus provide more informative results.

For anyone wishing to do more research on this subject, these are a few suggestions to guide that research. One might explore the conditions under which the image-only PadPrints version is better than the title-only version. One might also explore the impact of collapsing subtrees on performance.

Refinements to the Theory

We are unable to further refine our theory because of unexpected setbacks.

Other Sugestions

The results of our experiment were skewed due to problems encountered during the experiment. These problems include a slow local test machine, slow PadPrints response time (title-only vs. image-only vs. title-image response time), PadPrints' execution failures. These problems could be alleviated by using a faster test machine. To achieve more accurate response times from subjects, a delay in PadPrints' response time may be inserted into the PadPrints code. This ensures the three versions respond as equally fast and the only times to consider in results is the question response times of the subject.