So, a second question is whether the learning is masked by language issues.
However, they assumed that these results could have been masked by language problems, as migrants may have had problems communicating a refusal and were instead coded as not able to participate.
But it said 'the bleeping of the words was not always sufficient to mask the language or its impact'.
Instructions were masked in a language that was wide open to abuse.For example, explained Mr Botha this week, words commonly used in State Security Council meetings were elimineer (eliminate), uitwis (wipe out) and uit die samelewing verwyder (remove from society).
As he took his leave, he said he would be looking hard at a new American proposal to see if cosmetic changes in language masked a loss of actual authority for his government.
The beauty of Lincoln's language masked the brutality of his content.
Al Purdy, a lanky writer whose brash, freewheeling ways masked a love for language that produced 33 volumes of poetry, died on Friday at his winter home in Sidney, on Vancouver Island.
A brash, garrulous, hard-drinking, open-faced Southerner, he had a charm and peculiar Delphic felicity with language that masked a complex personality and an equally multilayered emotional approach to art, which evolved as his stature did.
The frequent harshness of these trade-offs in real life is masked by the academic language of the report, which points out that native-born workers who are substitutes for immigrants "will experience negative wage effects" — in other words, lower wages.
"They were masked and spoke foreign languages which our fighters could not understand," Abu Musab told Reuters.
