A Stanford University study showed that learning loss suffered by students during pandemic restrictions could result in lower incomes throughout their lifetime.

"The pandemic has had devastating effects in many areas, but none are as potentially severe as those on education," the study's author, Eric A. Hanushek, wrote in its conclusion. "There is overwhelming evidence that students in school during the closure period and during the subsequent adjustments to the pandemic are achieving at significantly lower levels than would have been expected without the pandemic."

The study, entitled "The Economic Cost of the Pandemic," analyzed National Assessment of Educational Progress data and found that between 2019 and 2022, test scores in math and English dropped an average of eight points across the country. The drastic drop came after nearly two decades of progress, the study noted, erasing all the gains in test scores made between 2000 and 2019.

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Texas children remote learning at home during pandemic

A 10-year-old and 7-year-old in Texas attend school virtually during COVID-19 Pandemic. 

Hanushek notes that while most policymakers and the media have focused solely on the pandemic's impact on test scores, the loss in student achievements could have severe economic repercussions. According to the study, students enrolled in schools during pandemic restrictions will face an average of a two to nine percent drop in lifetime earnings, resulting in states facing a 0.6 to 2.9 percent drop in total GDP.

"At the extreme, California is estimated to have lost $1.3 trillion because of learning losses during the pandemic. These losses are permanent unless a state’s schools can get better than their pre-pandemic levels," the study reads.

Unless schools are able to make up for the declines, students enrolled in schools during the pandemic will enter the workforce with lower cognitive skills needed to succeed in a constantly evolving economy.

Brother and sister remote learning in Georgia during pandemic

Fulton County Public Schools 8th-grader Ceani Williams helps her 5th-grade brother, Kareem Williams, with his classwork during a virtual learning day at their residence in Milton, Georgia. (REUTERS/Alyssa Pointer)

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"Extensive research demonstrates a simple fact: those with higher achievement and greater cognitive skills earn more," the study reads. "The evidence suggests that the value of higher achievement persists across a student’s entire work life."

The study notes that the "United States rewards skills more than almost all other developed countries," something that will hamper current students' ability to navigate a "technologically driven economy where workers are continually adjusting to new jobs and new ways of doing things."

Hanushek concludes that while the responsibility for the losses does not solely fall on schools, it will be up to them to lead the effort towards recovering lost skills. However, the study warns that efforts so far have been insufficient to make up the gap.

student wearing masks writes on paper

Students in Isabel Reyes' kindergarten class at Stanley Mosk Elementary school wear masks while indoors Friday, March 11, 2022.  (David Crane/MediaNews Group/Los Angeles Daily News via Getty Images)

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"Efforts to date have not been sufficient to arrest the losses," the study concludes. "If the schools are not made better, there will be continuing economic impacts as individuals and the nation will suffer from a society with lower skills."