This information is collected under the authority of the National Science Foundation Act of 1950, as amended. All information provided will be used for research and statistical purposes by the survey sponsors and their contractors for the purpose of analyzing data and preparing scientific reports. Response is entirely voluntary. Not providing some or all of the information will in no way adversely affect your institution. The average time required for one worksheet completion is 2.7 hours. Response burden comments should be directed to Suzanne Plimpton, Reports Clearance Officer, NSF, via e-mail at splimpto@nsf.gov.