The shortage of top-quality schools in certain Boston neighborhoods has undercut the city’s bold efforts to provide access to good schools close to home, according to a new study led by a Northeastern University-based research center.

Four years ago, Boston began implementing a school assignment system that uses an algorithm to produce individualized school options for families, with the goal of increasing students’ access to high-quality schools while reducing the distance they must travel to get to school. Schools were ranked into one of four tiers based on their most recent MCAS scores and historical trajectory, with tier 1 being the highest.

The researchers concluded that the new assignment system failed to counteract the city’s longstanding geographic, racial, and socioeconomic disparities, noting that in some ways it further diminished geographic and racial integration across the district.

The study focused on evaluating the system’s effectiveness over three years for kindergarten and sixth grade. Boston Public Schools began implementing its new assignment system with kindergarten and sixth grade during the 2014-15 academic year, and has been sequentially phasing in other grades since then.

Read the full article on the Northeastern News website.