First, self-reported data are subject to social desirability and response bias.

Problem with self-reported data is people often tell the story they want to hear.

The obvious limitation of this study is the reliance on retrospective self-reported data.

The study, based on self-reported data from more than 10,000 high school students, also found other evidence of more conservative sexual behavior.

As of Fall 2007 self-reported data, 43% of students are male and 57% female.

We're quite aware of and up front about the limitations of self-reported data.

As a result, the survey is incomplete and is based on the cooperating high schools' self-reported data.

Relying on self-reported data may create a downward bias in the number of Federal workers who are likely to benefit from the standards.

Such electronic collection of self-reported data is creeping into clinical drug trials.

Such electronic features reduce the inaccuracy of self-reported data, a big problem with paper diaries.