High School Longitudinal Study of 2009 (HSLS:09): Base-Year Data File Documentation. NCES 2011-328.

By S. Ingels, Daniel J. Pratt, Deborah R. Herget, Laura J. Burns, Jill A Dever, Randolph Ottem, James E. Rogers, Ying Jin, Steven J. Leinwand. 2011

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Teacher support, instructional practices, student motivation, and mathematics achievement in high school (2018, methodology): “The weight was used to account for the HSLS:09 complex survey design to produce estimates for the target population of the HSLS:09 study, with appropriate standards errors (Ingels et al., 2011).”
Factors Influencing STEM Career Aspirations of Underrepresented High School Students (2018, methodology): “The personal/psychological cluster included eight composite variables derived from principal-components factor analysis and standardized to a mean of 0 and a standard deviation of 1 using a 4-point Likert scale (1 = strongly agree, 4 = strongly disagree; Ingels et al., 2011).”
Teacher Support and Engagement in Math and Science: Evidence from the High School Longitudinal Study (2016, methodology): “…administered; in the base year, initial student respondents completed the questionnaires on a computer during in-school sessions, while subsequent follow-ups and parent questionnaires used web, computer-assisted telephone administrations, or in-person surveys (Ingels et al., 2011, 2013).”