IES Blog

Institute of Education Sciences

Congratulations Dr. Roddy Theobald on Winning the 2022 AEFP Early Career Award!

Headshot of Roddy TheobaldEach year, the Association for Education Finance and Policy (AEFP) recognizes one outstanding early career scholar whose research makes a significant contribution to the field of education finance and policy. In 2022, Dr. Roddy Theobald was the recipient of the Early Career award from AEFP. Congratulations to Dr. Theobald!

Dr. Theobald is a principal researcher in the Center for Analysis of Longitudinal Data in Education Research (CALDER) at the American Institutes for Research (AIR). CALDER, a collaboration among researchers at AIR and several universities around the United States, uses longitudinal data to explore a wide range of policy-relevant topics in education. Dr. Theobald’s research focuses on the teacher pipeline and its implications for student outcomes. Over the years, he has been involved in multiple IES-funded projects. These projects reflect a clear commitment to improving the teacher workforce and promoting positive outcomes for students. Dr. Theobald became interested in education policy research and studying the teacher workforce as a result of his experience as a 7th grade math teacher in the Oakland Unified School District. He is particularly interested in better understanding teacher shortage areas and what schools and districts can do to address them. 

As principal investigator (PI) on a recently completed researcher-practitioner partnership project, Dr. Theobald and his team worked in partnership with the Massachusetts Department of Elementary and Secondary Education to investigate the predictive validity of the state’s pre-service teacher evaluation systems and later in-service teaching outcomes and student outcomes. Key findings showed that teacher candidate performance on the Massachusetts Candidate Assessment of Performance, a practice-based assessment of student teaching, was predictive of their in-service summative performance ratings a year later. In examining the predictive validity of the Massachusetts Tests for Educator Licensure, results indicated that pre-service teacher scores were positively and significantly related to in-service performance ratings and value-added modeling of student test scores.

Dr. Theobald is currently the PI of a research grant that examines associations between pre-service teacher experiences (coursework, student teaching placements, and the match between student teaching experiences and early career experiences), special education teacher workforce entry and retention, and student academic outcomes. Using data on graduates of special education teacher education programs in Washington state, he found that the rate of special educator attrition is between 20-30%, which includes teachers that left public schools as well as those who moved to general education classrooms. Interestingly, the research team found that while dual endorsement in special and general education is positively associated with retention in the teaching workforce, it is negatively associated with retention in special education classrooms specifically. In terms of factors that promote retention, the research team found that better coherence between teacher preparation and early career experiences is associated with greater retention and that being supervised by a cooperating teacher endorsed in special education as part of student teaching is associated with a higher likelihood of becoming a special education teacher. The research team also found a link between preservice teacher experiences and student outcomes: students demonstrate larger reading gains when their district and the program from which their teacher graduated emphasized evidence-based literacy decoding practices and when a more experienced cooperating teacher supervised their teacher’s student teaching placement.

When we asked Dr. Theobald about the direction in which this line of research is heading, he explained, “immediate next steps in this line of work include looking at the employment outcomes of individuals trained to be special education teachers who never enter public school teaching or leave the teacher workforce, as well as better understanding the paraeducator workforce in public schools. It is also essential to understand how the special educator workforce has changed in response to the COVID pandemic, and we hope to study these changes in the years to come!”

This blog was authored by Kaitlynn Fraze, doctoral student at George Mason University and IES intern, and Katie Taylor (Katherine.Taylor@ed.gov), program officer at the National Center for Special Education Research.

Rescaled Data Files for Analyses of Trends in Adult Skills

In January 2022, NCES released the rescaled data files for three adult literacy assessments conducted several decades earlier: the 1992 National Adult Literacy Survey (NALS), the 1994 International Adult Literacy Survey (IALS), and the 2003 Adult Literacy and Lifeskills Survey (ALL). By connecting the rescaled data from these assessments with data from the current adult literacy assessment, the Program for the International Assessment of Adult Competencies (PIAAC), researchers can examine trends on adult skills in the United States going back to 1992. This blog post traces the history of each of these adult literacy assessments, describes the files and explains what “rescaling” means, and discusses how these files can be used in analyses in conjunction with the PIAAC files. The last section of the post offers several example analyses of the data.

A Brief History of International and National Adult Literacy Assessments Conducted in the United States

The rescaled data files highlighted in this blog post update and combine historical data from national and international adult literacy studies that have been conducted in the United States.

NALS was conducted in 1992 by NCES and assessed U.S. adults in households, as well as adults in prisons. IALS—developed by Statistics Canada and ETS in collaboration with 22 participating countries, including the United States—assessed adults in households and was administered in three waves between 1994 and 1998. ALL was administered in 11 countries, including the United States, and assessed adults in two waves between 2003 and 2008.

PIAAC seeks to ensure continuity with these previous surveys, but it also expands on their quality assurance standards, extends the definitions of literacy and numeracy, and provides more information about adults with low levels of literacy by assessing reading component skills. It also, for the first time, includes a problem-solving domain to emphasize the skills used in digital (originally called “technology-rich”) environments.

How Do the Released Data Files From the Earlier Studies of Adult Skills Relate to PIACC?

All three of the released restricted-use data files (for NALS, IALS, and ALL) relate to PIAAC, the latest adult skills assessment, in different ways.

The NALS data file contains literacy estimates and background characteristics of U.S. adults in households and in prisons in 1992. It is comparable to the PIAAC data files for 2012/14 and 2017 through rescaling of the assessment scores and matching of the background variables to those of PIAAC.

The IALS and ALL data files contain literacy (IALS and ALL) and numeracy (ALL) estimates and background characteristics of U.S. adults in 1994 (IALS) and 2003 (ALL). Similar to NALS, they are comparable to the PIAAC restricted-use data (2012/14) through rescaling of the literacy and numeracy assessment scores and matching of the background variables to those of PIAAC. These estimates are also comparable to the international estimates of skills of adults in several other countries, including in Canada, Hungary, Italy, Norway, the Netherlands, and New Zealand (see the recently released Data Point International Comparisons of Adult Literacy and Numeracy Skills Over Time). While the NCES datasets contain only the U.S. respondents, IALS and ALL are international studies, and the data from other participating countries can be requested from Statistics Canada (see the IALS Data Files/Publications and ALL Data pages for more detail). See the History of International and National Adult Literacy Assessments page for additional background on these studies. 

Table 1 provides an overview of the rescaled NALS, IALS, and ALL data files.


Table 1. Overview of the rescaled data files for the National Adult Literacy Survey (NALS), International Adult Literacy Survey (IALS), and Adult Literacy and Lifeskills Survey (ALL) 

Table showing overview of the rescaled data files for the National Adult Literacy Survey (NALS), International Adult Literacy Survey (IALS), and Adult Literacy and Lifeskills Survey


What Does “Rescaled” Mean?

“Rescaling” the literacy (NALS, IALS, ALL) and numeracy (ALL) domains from these three previous studies means that the domains were put on the same scale as the PIAAC domains through the derivation of updated estimates of proficiency created using the same statistical models used to create the PIAAC skills proficiencies. Rescaling was possible because PIAAC administered a sufficient number of the same test questions used in NALS, IALS, and ALL.1 These rescaled proficiency estimates allow for trend analysis of adult skills across the time points provided by each study.

What Can These Different Files Be Used For?

While mixing the national and international trend lines isn’t recommended, both sets of files have their own distinct advantages and purposes for analysis.

National files

The rescaled NALS 1992 files can be used for national trend analyses with the PIAAC national trend points in 2012/2014 and 2017. Some potential analytic uses of the NALS trend files are to

  • Provide a picture of the skills of adults only in the United States;
  • Examine the skills of adults in prison and compare their skills with those of adults in households over time, given that NALS and PIAAC include prison studies conducted in 1992 and 2014, respectively;
  • Conduct analyses on subgroups of the population (such as those ages 16–24 or those with less than a high school education) because the larger sample size of NALS allows for more detailed breakdowns along with the U.S. PIAAC sample;
  • Focus on the subgroup of older adults (ages 66–74), given that NALS sampled adults over the age of 65, similar to PIAAC, which sampled adult ages 16–74; and
  • Analyze U.S.-specific background questions (such as those on race/ethnicity or health-related practices).

International files

The rescaled IALS 1994 and ALL 2003 files can be used for international trend analyses among six countries with the U.S. PIAAC international trend point in 2012/2014: Canada, Hungary, Italy, Norway, the Netherlands, and New Zealand. Some potential analytic uses of the IALS and ALL trend files are to

  • Compare literacy proficiency results internationally and over time using the results from IALS, ALL, and PIAAC; and
  • Compare numeracy proficiency results internationally and over time using the results from ALL and PIAAC.

Example Analyses Using the U.S. Trend Data on Adult Literacy

Below are examples of a national trend analysis and an international trend analysis conducted using the rescaled NALS, IALS, and ALL data in conjunction with the PIAAC data.

National trend estimates

The literacy scores of U.S. adults increased from 269 in NALS 1992 to 272 in PIAAC 2012/2014. However, the PIAAC 2017 score of 270 was not significantly different from the 1992 or 2012/2014 scores.


Figure 1. Literacy scores of U.S. adults (ages 16–65) along national trend line: Selected years, 1992–2017

Line graph showing literacy scores of U.S. adults (ages 16–65) along national trend line for NALS 1992, PIAAC 2012/2014, and PIAAC 2017

* Significantly different (p < .05) from NALS 1992 estimate.
SOURCE: U.S. Department of Education, National Center for Education Statistics, National Adult Literacy Survey (NALS), NALS 1992; and Program for the International Assessment of Adult Competencies (PIAAC), PIAAC 2012–17.


International trend estimates

The literacy scores of U.S. adults decreased from 273 in IALS 1994 to 268 in ALL 2003 before increasing to 272 in PIAAC 2012/2014. However, the PIAAC 2012/2014 score was not significantly different from the IALS 1994 score.


Figure 2. Literacy scores of U.S. adults (ages 16–65) along international trend line: Selected years, 1994–2012/14

Line graph showing literacy scores of U.S. adults (ages 16–65) along international trend line for IALS 1994, ALL 2003, and PIAAC 2012/2014

* Significantly different (p < .05) from IALS 1994 estimate.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Statistics Canada and Organization for Economic Cooperation and Development (OECD), International Adult Literacy Survey (IALS), 1994–98; Adult Literacy and Lifeskills Survey (ALL), 2003–08; and Program for the International Assessment of Adult Competencies (PIAAC), PIAAC 2012/14. See figure 1 in the International Comparisons of Adult Literacy and Numeracy Skills Over Time Data Point.


How to Access the Rescaled Data Files

More complex analyses can be conducted with the NALS, IALS, and ALL rescaled data files. These are restricted-use files and researchers must obtain a restricted-use license to access them. Further information about these files is available on the PIAAC Data Files page (see the “International Trend Data Files and Data Resources” and “National Trend Data Files and Data Resources” sections at the bottom of the page).

Additional resources:

By Emily Pawlowski, AIR, and Holly Xie, NCES


[1] In contrast, the 2003 National Assessment of Adult Literacy (NAAL), another assessment of adult literacy conducted in the United States, was not rescaled for trend analyses with PIAAC. For various reasons, including the lack of overlap between the NAAL and PIAAC literacy items, NAAL and PIAAC are thought to be the least comparable of the adult literacy assessments.

Becoming a Citizen: Creating a Curriculum for Adult Civics Courses

As we return from our celebration of Independence Day, we also want to celebrate the efforts and dedication of the learners and educators who participate in adult literacy’s integrated English literacy and civics education. This important, but sometimes forgotten, aspect of adult education opens opportunities for learners and creates an engaged, informed citizenry.

What is “integrated civics” in adult education?

Under Title II of the 2014 Workforce Innovation and Opportunity Act (WIOA), integrated English literacy and civics education refers to services for adult English language learners, including professionals with degrees and credentials in their native countries, to build their English language skills—foundational and more advanced—to support their roles as parents, workers, and citizens in the United States. These courses must include English literacy instruction and “instruction on the rights and responsibilities of citizenship and civic participation and may include workforce training.”

Are there specific curricula for these programs?

Although WIOA defined what had and could be included in this form of adult education, it did not specify how to include it. Nor did WIOA mandate a particular curriculum or instructional practices. Thus, programs offering these courses may leverage resources from multiple sources and design approaches to meet their communities’ needs.

Luckily, both the Office of Career, Adult, and Technical Education (OCATE, U.S. Department of Education) and the U.S. Citizen and Immigrations Services (USCIS, Department of Homeland Security) have developed resources and standards to help educators.

Though multiple guides, online education resources, and other teaching materials are available, the evidence base and promise of these is not always apparent.  

Is IES supporting research in this area?

In FY21, IES awarded a research grant, Content-Integrated Language Instruction for Adults with Technology Support (CILIA-T), to Dr. Aydin Durgunoglu (University of Minnesota). She and her team of researchers and educators are developing and pilot testing a curriculum that aims to strengthen English language proficiency, knowledge of U.S. history and civics, and digital literacy. This project, which is part of the CREATE Adult Skills Research Network, is the first field-initiated research project IES has funded for adult English learners or adult civics.

Why is integrating language and civics important?

A fundamental instructional practice in adult education is to link instruction to activities and goals highly relevant to the adult learner. For refugees, immigrants, and others new to the United States, becoming a citizen and being able to communicate with others are both highly relevant goals and both daunting tasks. By blending the two, these courses may help adults persist longer and gain knowledge in skills in multiple domains concurrently.

Dr. Durgunglu notes—

I don’t think conversational skills are enough for refugees or immigrants as they learn to navigate in their new communities. To be participatory citizens, they need “academic” English, especially about rights and responsibilities. To really belong to a community, individuals need to know their rights so that they are not exploited and know their responsibilities such as voting and participating in the community activities. Knowing how the system works help people contribute to different type of the decision-making processes, from selecting schoolbooks to selecting a president.

On a personal note, as a naturalized citizen who learned about U.S. history and civics and then took the citizenship exam, these topics really helped me understand the American psyche, such as the individualistic streak that goes back to the pioneers, why government’s role in social services is so controversial in this country, and why one state can be so different from another. Having experienced censorship and autocratic governments, I have a lot of respect for the principle of checks and balances and am aware how fragile democracy and individual rights can really be if not protected dearly.

Where can people learn more?

To learn more about CILIA-T, visit the ABE Teaching & Learning Advancement Systems article: Civics/History Curriculum: An Introduction to the CILIA-T Curriculum Project.

To learn more about the CREATE Adult Skills Research Network, please visit the network lead’s site.

For additional resources, visit the U.S. Department of Education’s LINCS website, which includes items about civics education, English language learners, and other topics relevant to adult education.

For additional information and resources about the citizenship test and courses, visit the USCIS Citizenship Resource Center.


Written by Meredith Larson (meredith.larson@ed.gov), adult education research analyst and program officer for the CREATE Adult Skills Research Network.