What is the year or cohort to which the loan repayment rates refer on the College Scorecard as shown today? My institution shows a repayment rate of 68% but there is no year of reference.
Presently, the collegescorecard.ed.gov utilizes data from 1996--2014. The measure you're referring to, "Students Paying Down Their Debt," is defined as "The share of students who have repaid at least $1 of the principal balance on their federal loans within 3 years of leaving school." Therefore this would apply to those who left between 1996--2011, as the data for 2015--present haven't been released or collected yet.
My guess is that the measure is a time-independent average, or an average with more recent years being weighted heavier than earlier years.
The source of the metric is the National Student Loan Data System (NSLDS). The current data are from fiscal years 2014 and 2015 (this metric uses a pooled cohort for students repaying during 3-year periods of FY 2011-2014 and FY 2012-2015). This information is included in the Scorecard Data Dictionary (https://collegescorecard.ed.gov/assets/CollegeScorecardDataDictionary.xlsx) in the tab labeled "most recent cohort map."