The U.S. jobless rate dropped 0.2 percentage points to 10% in November, the first decline in three months, but the government’s broader measure of unemployment tumbled even more, falling 0.3 point to 17.2%.

The comprehensive gauge of labor underutilization, known as the “U-6” for its data classification by the Labor Department, accounts for people who have stopped looking for work or who can’t find full-time jobs. Though the drop is a sign of improvement, the rate’s continuing divergence from the official number (the “U-3” unemployment measure) indicates the job market has a long way to go before growth in the economy translates into relief for workers.

The 10% unemployment rate is calculated based on people who are without jobs, who are available to work and who have actively sought work in the prior four weeks. The “actively looking for work” definition is fairly broad, including people who contacted an employer, employment agency, job center or friends; sent out resumes or filled out applications; or answered or placed ads, among other things.

The U-6 figure includes everyone in the official rate plus “marginally attached workers” — those who are neither working nor looking for work, but say they want a job and have looked for work recently; and people who are employed part-time for economic reasons, meaning they want full-time work but took a part-time schedule instead because that’s all they could find.

In the coming months, the U-6 measure may be an important signal for the labor market. Even though it posted a decline this month, the official jobless rate is likely to rise or at least hold steady through the first half of next year as more people return to the job market. That means Americans who now fall into the U-6 category, for stopping their job searches due to discouragement, will eventually fall into the U-3 category as they restart their job hunt.

A U-6 figure that converges toward the official rate (even an official rate that’s above 10%) could indicate improving confidence in the labor market and the overall economy. This month indicates a start toward convergence, but real progress could be months away.