Underwater divers encounter the same difficulties.
However, as pointed out in [1], the ideal form of the method is often impractical since, in many cases, to solve the problem (1.2) exactly is either impossible or has the same difficulty as the original problem (1.1).
The same difficulty applies to colour concepts.
Others were having the same difficulty.
Don't play on the same difficulty.
Since two booklets can never have exactly the same average difficulty, Item Response Modeling was used by PISA to establish comparable science results across students.
"Qiu Bo so far has been unbeaten for the last couple of years individually, but in the last few years, I've learned all the dives he's got, so we've both got exactly the same degree of difficulty.
"At this very moment, the American government is struggling with exactly the same problem: the difficulty of paying providers in a way that encourages them to treat patients and do so well, but not in a way that encourages them to overtreat them," said Adam Wagstaff, a World Bank economist who was the main author of the report on China's rural medical program.
Both classifications showed results that were very similar although not exactly the same, basically due to the difficulty experts experience in recognizing "intermediately-inefficient" DMU.
In his first few days in the job two years ago, Stevens pointed out that many of the hospitals with the worst problems for clinical quality and financial viability were exactly the same ones that had been in difficulties when he first started as an NHS manager almost 30 years earlier.
The most important note to remember is that the two plants should have stems with exactly the same size, so they can grow together without difficulty.
