Sentence examples for makes it difficult to test from inspiring English sources

Having only a small number of glacial/inter-glacial cycles to work with makes it difficult to test whether a plausible analogy is actually predictive.

A limited concept validity of existing policy measurements makes it difficult to test outcomes of different integration policy regimes against each other and to draw reliable inference (Goodman, 2015).

First, the variety of pesticides in use in the different areas reporting CCD makes it difficult to test for all possible pesticides simultaneously.

The complexity of the PE environment makes it difficult to test all factors impacting on motivation.

Universal exposure complicates the analysis of epidemiologic studies because of the absence of a nonexposed group, which makes it difficult to test the hypotheses under investigation.

Support for both hypotheses has been obtained using mitochondrial phylogenies and molecular clock approaches (i.e. [ 9, 42]), although the lack of likely surface ancestral lineages and robust phylogenies makes it difficult to test them in particular cases [ 4].

Containment halted the spread of the infection — a great thing — but it made it difficult to test the vaccine".

The most recent major event at the Barclays Center, a Paul McCartney show on Monday, made it difficult to test Mr. Schwartz's hipster-to-vehicle ratio.

But more significant advances have been hampered by a lack of money for research and laws and regulations that make it difficult to test new ideas and introduce improved equipment.

However, some samples agglomerated, which made it difficult to test individual microcapsules.

This includes the southern coast of Beringia, where dramatic landscape changes make it difficult to test the coastal migration theory, which proposes that Upper Paleolithic peoples followed Pacific shorelines from northeast Asia to the Americas.