The increase was driven by the uptick in confidence of getting a raise, which, the surveyors say, increased by "an unprecedented 12.2 points during the quarter." They add: "The likelihood of raise hit its highest point in the second quarter 2016 since the launch of the study — at 28 percent."

In the other three areas, the dials didn't move as strongly, and "trust in company leadership" actually dropped slightly. Over the past four survey periods, about 8 percent of those interviewed felt losing their jobs was likely. The survey also found that women felt more secure in their jobs than did men, and that non-whites tend to worry about losing their jobs than do whites.

"The spike in workers' 'perceived likelihood of a raise' follows what we typically see coming out of the first quarter as many Americans begin to expect raises as fiscal years come to a close," says Andy Roane, vice president of recruitment process outsourcing for Yoh. "The smaller changes in expected promotion, job loss and trust in company leadership hint that while companies may be doing well financially in mid-2016, employees are still apprehensive about a full recovery, especially with the historic 2016 presidential election looming."

Over the past year, likelihood of job loss has consistently stayed between 8.4 percent and 8.6 percent. Women continue to report higher levels of confidence in their job security than men (6.8 percent for women and 10.5 percent for men). Minorities tend to anticipate job loss more than whites (12.2 percent for blacks and 14.2 percent for Hispanics versus 5.9 percent for whites).