Some experts say the gap may reflect the overall differences between the candidates as much as the issues specific to education.
The gap reflects a historical lag between food and service that makes perfect sense, given the evolution of American cuisine.
But the shrinking gap reflects more the decline of men's wages than an improvement of women's incomes.
The seeming gap between the rhetoric at Saturday's news conference and the reality of the threat could reflect a change in approach among law enforcement officials.
They said that the gap between inflation and tuition increases reflected the growing value of a college degree in the United States.
If few Americans can recall "Choice," though, the gap does not reflect a failure of memory.
This gap (which is covered well in the show's catalogue) reflects a major crisis for Italian Jews.
The two gaps accurately reflect the top and bottom of the tolerance range.
The urban-rural gap at older ages probably reflects the scarcity of higher educational opportunities in rural areas.
The apparent gap reflects the differences between schools in the district.