IES Blog

Institute of Education Sciences

The growing field of statistics

By Lauren Musu-Gillette

In 2010, the United Nations General Assembly adopted October 20th as World Statistics Day. Over 130 countries and areas of the world joined in the inaugural World Statistics Day celebration. October 20, 2015 is the second time World Statistics Day will be celebrated. This day is intended to highlight the important contributions statistics and statisticians make to a wide array of national and international activities.  The theme for World Statistics Day 2015 – “Better data. Better lives.” – reflects the important role that statistics plays in helping businesses, governments, and the public make informed decisions.

Careers in statistics are varied, and cover a range of areas that include politics, economics, finance, and governance. As the interest in data-driven decision making grows, so too does the demand for statisticians.  The Bureau of Labor Statistics estimates that the job growth for statisticians will be much faster than the average overall job growth. As a reflection of that growth, the number of degrees conferred in the field of mathematics and statistics has increased over the last decade. For example, in 2002–03 there were 12,505 bachelor’s degrees conferred in mathematics and statistics and in 2012–13, there were 20,453 degrees conferred in this field. During this period, the number of degrees conferred also increased for master’s degrees (from 3,620 to 6,957), and doctor’s degrees (from 1,007 to 1,823). 


Bachelor’s degrees in mathematics and statistics conferred by postsecondary institutions, by sex of student: 2002-03 through 2012-13SOURCE: National Center for Education Statistics, Integrated Postsecondary Education Data System (IPEDS). See Digest of Education Statistics 2014, table 325.65.


While the number of degrees conferred in mathematics and statistics increased for both males and females over the past decade, the percentage of bachelor’s degrees conferred to males in 2012–13 was higher than the percentage for females (57 vs. 43 percent). Similarly, a higher percentage of master’s degrees in this field were conferred to males in 2012–13 (60 vs. 40 percent), and the same was true for doctor’s degrees (71 vs. 39 percent).

By collecting and disseminating data on the number of degrees conferred in different fields, NCES can help researchers, policy-makers, and the public to determine whether the changing demands of the workforce are likely to be met.

To find out more information about World Statistics Day, please visit https://worldstatisticsday.org/

Did you know that NCES has a Kids' Zone?

By Lauren Musu-Gillette

Join us in celebrating World Statistics Day on October 20, 2015!

While most of NCES’ products are designed for education stakeholders such as teachers, school administrators, and researchers, the Kids' Zone is designed for use by some of our most important consumers - students! The Kids' Zone contains features such as a dice game that helps students learn about probability and statistics, links to online tools where students can find information on their school, and a graph creation tool.

According to the graph above, which element forms the second greatest portion of the earth’s crust?

  1. Oxygen
  2. Silicon
  3. Aluminum
  4. Iron
  5. Calcium

The above question is an example of an 8th grade mathematics question that can be answered using the Dare to Compare feature of the NCES Kids' Zone. This feature of the NCES Kids' Zone allows you to choose questions (5, 10, 15, or 20) from different subject areas (Civics, Economics, Geography, History, Mathematics, or Science) asked at different grade levels depending on the subject selected (4th grade, 8th grade, 9th grade, or 12th grade). After you answer the questions, your answers are scored and you can see how you compared to students in that age range either nationally or internationally. For example, on this question 87 percent of U.S. 8th graders selected the correct response of Silicon on a past NAEP assessment.

Create a Graph can be used by teachers and students. In fact, Create a Graph is one of the most frequently visited pages on the NCES website. Using this tool, you can create bar graphs, line graphs, pie graphs, area graphs, or you can choose an XY plot in order to plot individual points. For example, everyone in class could answer a series of questions using Dare to Compare. Then, the class could calculate what percentage of the class responded correctly to certain items and graph that percentage along with the percentage of students who answered the question correctly in different regions of the U.S., or different countries. We encourage you to join us in celebrating World Statistics Day on October 20, 2015 by planning a fun activity, such as the one suggest above, using the NCES Kids' Zone. Follow us on Twitter @EdNCES for other ideas and announcements about World Statistics Day.

There are a lot of fun features on the NCES Kids' Zone – so go ahead and explore! 

Highlights from the Building Strength in Numbers Briefings

By Caroline Ebanks, NCER Program Officer

Young children’s knowledge and understanding of mathematics concepts and their ability to think and apply those concepts in their daily lives are important predictors of early and ongoing school achievement. On Thursday, September 24th and Friday, September 25th, three IES-funded researchers – Dr. Prentice Starkey from WestEd, Dr. Douglas Clements from the University of Denver, and Dr. Hiro Yoshikawa from New York University – came to Washington, D.C. to highlight findings and policy and practice implications from the Institute’s investment in early math research since 2002. They described efficacious early math interventions that have narrowed the achievement gap, improved the pedagogical knowledge and instructional practices of early childhood educators, and changed policy and practice in early childhood programs.  The briefings were arranged for legislative staff on Capitol Hill and officials in the Department of Education by the Friends of IES, a coalition of research organizations that is working to raise the visibility of IES-funded studies.   

 

  • Dr. Starkey shared his findings about how using the Pre-K Mathematics curriculum with three- and four-year-old children can close the socio-economic gap in math achievement. Findings from two studies awarded in 2002 and 2005 found that the Pre-K Mathematics curriculum had significant, positive impacts on children’s mathematics knowledge, understanding of verbal directions, and persistence in completing a task. The positive impacts of that pre-kindergarten program led Dr. Starkey and his team to test whether receiving two years of math instruction at ages three and four would close the SES-related achievement gap that is often present at kindergarten entry.  The team found that for children who received two years of the intervention, the SES-related gap in mathematical knowledge was closed at the end of preschool but re-opened in kindergarten, suggesting that students need additional math instruction in kindergarten to support early gains. The key message from Dr. Starkey’s presentation is that it is possible to narrow or close the early math achievement gap and help young children succeed in school.
  •  

  • Dr. Clements presented findings from three IES-funded studies of the Building Blocks curriculum and the Technology-enhanced, Research-based, Instruction, Assessment, and Professional Development (TRIAD) implementation model. In a 2005 scale-up study, Dr. Clements and colleagues found that the intervention had a significant impact on the mathematical knowledge of children at the end of prekindergarten; and that sustained effects at the end of kindergarten were only seen for children whose kindergarten teachers had received support to provide follow-through instruction for the students during the kindergarten year.  Their most recent study showed that effects were maintained in later grades, especially for African-American children. These findings suggest that pre-k effects don’t fade out, but that elementary schools need to do more to build on children’s entry level skills so as to support their ongoing learning and achievement during the elementary school years.  Reflecting the strong evidence base supporting the Building Blocks curriculum, both Boston Public Schools and New York City are using the Building Blocks curriculum in their preschool classrooms.  Takeaways from Dr. Clements include:
    • a strong professional development model is critical for the implementation of an efficacious curriculum;
    • follow through, building on children’s prior knowledge and skills in the early elementary grades, is essential, especially for children from at-risk backgrounds; and
    • fadeout is not the only option. It is possible to sustain implementation of an intervention over time and maintain effects with follow through.

     

  • Dr. Yoshikawa described findings from a 2009 IES-funded evaluation study of the Boston Public Schools (BPS) implementation of two efficacious interventions in public prekindergarten classrooms. One of the two interventions was the Building Blocks mathematics curriculum. The school district provided training and ongoing coaching support to teachers to implement the two interventions. The BPS pre-k program had a significant, positive impact on children’s language, literacy, math, and executive function skills (defined as working memory, inhibitory control, and cognitive flexibility).  All children benefitted from the BPS program, but impacts were larger for children from lower-income families and Latino children. From this study, Dr. Yoshikawa and colleagues learned that a large school district can adopt a program, implement it with fidelity and observe meaningful, positive impacts on a range of academic and social behavioral indicators of children’s school readiness skills.  In current IES-funded work, this team is examining long-term impacts of the BPS program on children’s school achievement in elementary school.

 

These examples of the Institute’s investment in early math research highlight the role of IES in funding research to improve children’s learning and achievement, and inform early childhood policy and practice. The research has had lasting consequences for the students who participated in the programs and is influencing policy and practice. For example, New York City has adopted the Building Blocks curriculum and the Pre-K Mathematics curriculum is being implemented in prekindergarten classrooms across the state of California.  Additional information about these studies can be found in the What Works Clearinghouse intervention reports for the Building Blocks and Pre-K Mathematics interventions.


Questions? Comments? Please email us at IESResearch@ed.gov.

NCSER Celebrates Down Syndrome Awareness Month

By Kristen Rhoads, Education Program Specialist, Office of Special Education Programs

October is Down Syndrome Awareness Month – a time to celebrate what makes individuals with Down syndrome wonderful.  
 
According to the Centers for Disease Control and Prevention, Down syndrome occurs in 1 out of approximately every 700 births, with about 6000 babies born with Down syndrome in the United States each year. It is a lifelong, genetic disorder caused by a full or partial third copy of the 21st chromosome.  Individuals with Down syndrome typically demonstrate profiles of relative strengths in visuospatial processing,  social skills, and receptive language and needs for support in many areas including expressive language, motor, and cognitive skills.  They may also have other health-related issues, including most commonly: hearing loss, ear infections, sleep apnea, eye diseases, and heart defects. With services, supports, and high expectations for performance, many individuals with Down syndrome earn high school diplomas, participate in post-secondary education, live independently, and become valuable contributors to society.  
 
In celebration of Down Syndrome Awareness Month, we asked Dr. Stephen Camarata, Professor in the Department of Hearing and Speech Sciences at Vanderbilt University, for his thoughts on educating children with Down syndrome and potential directions for research. Dr. Camarata is the Co-Investigator for a NCSER-funded grant to evaluate the efficacy of interventions designed to produce speech accuracy and comprehensibility of elementary school students with Down syndrome.

What should families keep in mind when their child is initially diagnosed with Down syndrome?

In our Down Syndrome Clinic here at Vanderbilt University, there is an initial "burst" of medical activity when the family first learns that their child has Down syndrome. Families spend time making sure that the child’s basic health needs are met and have a lot of appointments doing imaging, surgery, and so on. Then, the family settles in as the Down syndrome unfolds. The child’s development –talking and communication, education, and behavior - all become immediate and long term foci.

Are there common misconceptions about individuals with Down syndrome?

A BIG problem is that there is a myth of a learning shelf life or a mythical critical period for learning.  All too often this means that educators quit trying to teach academic skills to people with Down syndrome when they reach the age of 10 or 12. Tragically, this can mean pushing children through custodial care with minimal academic content instruction until they "age out" of educational support.
 
Another important consideration that I sometimes see is that people have low expectations and, therefore, underestimate the learning abilities of a child with Down syndrome. In a sense, they set the bar "too low” or do not provide meaningful learning opportunities. Therefore, educators may inadvertently prevent a child with Down syndrome from reaching his or her potential. Down syndrome is highly variable, so it is important to provide multiple types of opportunities and let the child show you how much and how fast he or she can learn.

Are there areas of research or practice that you think require more attention?

With regard to key research areas, my own recommendations are to:

  1. Examine further the benefits of inclusion – for both a child with Down syndrome and his or her peers
  2. Develop and evaluate interventions or strategies that improve communication, speech, language, social and literacy skills, especially reading comprehension.
  3. Investigate learning in adolescence and develop and evaluate interventions that optimize academic and transition outcomes in middle school and beyond.
  4. Examine strategies to improve parent and family support. All of the terrific things that we have learned for training parents of children with Autism Spectrum Disorders may also work for families that include a child with Down syndrome.  More research in this area is needed. 

Visit our website, for more information about the research that NCSER funds.

Questions? Comments? Please send them to IESResearch@ed.gov.

Behind the degree: Direct measures of cognitive skills or reports of highest degree earned

By Heidi Silver-Pacuilla

Categories of educational attainment – or highest degree earned – are often used in social science research as an indicator of a person’s knowledge and skills. This measure is objective and readily available, easily understood by survey respondents as well as by consumers of research and survey data, strongly tied to policies (such as those promoting high school graduation and college completion rates), and widely used in the labor market by employers. Moreover, strong connections between educational attainment and positive life outcomes, such as employment, earnings, health, and civic engagement, are well established.

Yet, this measure is an imprecise indicator of the amount of knowledge and skills an individual acquired during the years of education it took to complete the degree. It also masks variation across individuals and programs of study. In addition, adults continue to acquire skills and knowledge from a variety of sources and activities over their lifetimes after completing a degree, while on the job or through employer-sponsored training, continuing education, family and household management, hobbies and interests, etc. Adults also lose fluency with skills that are not put to regular use.

The Program for the International Assessment of Adult Competencies (PIAAC) survey[i] provides direct measures of working-age adults’ cognitive skills based on their performance on literacy, numeracy, and problem-solving tasks set in real-life contexts. Performance is reported on a scale of 1-5 for literacy and numeracy and a scale of 1-3 for problem solving. It pairs these measures with a background questionnaire that asks about the use of skills at work and in daily life, work history, and other social, behavioral, and demographic indicators.


Percentage of adults age 16 to 65 at each level of proficiency on the PIAAC literacy scale, by highest level of educational attainment: 2012Percentage of adults age 16 to 65 at each level of proficiency on the PIAAC literacy scale, by highest level of educational attainment: 2012

# Rounds to zero
NOTE: Percentages of adults age 16 to 65 by highest level of educational attainment appear in parentheses. Detail may not sum to totals because of rounding.
SOURCE: U.S. Department of Education, National Center for Education Statistics, Organization for Economic Cooperation and Development (OECD), Program for the International Assessment of Adult Competencies (PIAAC), 2012.


The direct measures of cognitive skills offer researchers the ability to study actual skills rather than only using attainment of a particular degree as a general indicator of skills, and to investigate how those assessed skills relate to behaviors and life outcomes. To illustrate how directly measured skills and educational attainment are not always aligned, we can compare direct performance to highest degrees earned. In the United States, of all adults who have attained only a high school degree, 20% performed in the lowest levels (Level 1 and Below Level 1) of literacy, while 7% of adults with an associate’s degree and 5% of those with a bachelor’s degree performed at this level. At the same time, the results showed that 6% of adults with no more than a high school diploma, 14% with only an associate’s degree, and 24% with a bachelor’s degree have very high literacy skills, at Level 4 or 5 on the same scale. See the full range of educational attainment and skill performance in literacy in the chart above.

Findings such as this can help inform policy, interventions, and communication strategies to better meet the needs of the recipients.

To read more about direct measures versus educational attainment, see Chapter 8 of the OECD Survey of Adult Skills – Reader's Companion.


[i] The PIAAC survey is coordinated internationally by the OECD. NCES implements PIAAC in the United States. Results were first released in October 2013 with data from 23 countries. It is a household survey administered by trained data collectors to a nationally-representative sample of adults, ages 16 through 65, in each country, in the official language(s), and in most cases, in respondents’ homes on a laptop computer.

In the United States, the survey was first administered in 2012 and additional results, based on an expanded sample, will be released in 2015-2016. To learn more about the U.S. administration and reporting of the survey, as well as related data tools, see https://nces.ed.gov/surveys/piaac/.