Methods Archives - ADP Research

Five things to know about the January ADP employment report

Last week we published the first ADP National Employment Report for 2026. This January release is special because it captures our annual benchmarking, a process that transforms ADP’s expansive payroll data into a nationally representative gauge of private-sector employment.

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Employment Methods

October 30, 2025

How representative is ADP employment data?

by Erik Brynjolfsson, Ph.D. and Nela Richardson, Ph.D.

Private-sector data is taking on greater importance as a measure of the economy. As its influence grows, it’s essential to understand the size, scope, and representation of these data sets.

Employment Methods

September 10, 2025

Bias in data

by Tim Decker

Bias is found wherever measurements are made and wherever people apply judgments. It’s an intrinsic part of the data landscape.

Retention Worker sentiment Methods

November 14, 2023

How ADPRI investigated the impact of student loans on the world of work

by Mary Hayes, Ph.D. • Jared Northup

Knowing that interest on student loan debt would begin accruing again in September, with payments coming due in October, we added six new items to our monthly pulse survey.

Development Retention Methods Today at Work

September 6, 2023

Today at Work: Promotion impact analysis

by Ben Hanowell

Research questions and technical notes

In the September issue of Today at Work, we examined employee motivation and commitment to their employer. My colleagues Dr. Mary Hayes and Jared Northup developed a tool – the EMC Index – to measure those aspects of worker sentiment, a project described ...

Worker sentiment Methods Today at Work

September 6, 2023

How ADPRI constructed the Employee Motivation and Commitment Index

by Mary Hayes, Ph.D. • Jared Northup

For nearly a decade, ADPRI has been collecting granular data on individual workers from a stratified random sample of people worldwide. In surveys of more than 490,000 workers in 29 countries, respondents have shared their feelings about their jobs, their colleagues, their organizations, their pay, their leaders, and many other workplace issues.

Our study reaches knowledge ...

Five things to know about the January ADP employment report

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How representative is ADP employment data?

Bias in data

How ADPRI investigated the impact of student loans on the world of work

Today at Work: Promotion impact analysis

How ADPRI constructed the Employee Motivation and Commitment Index

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