The phrase "a difficult hypothesis" is correct and usable in written English.
You can use it when discussing a hypothesis that presents significant challenges or complexities in understanding or testing.
Example: "In our research, we encountered a difficult hypothesis that required extensive experimentation to validate."
Alternatives: "a challenging hypothesis" or "a complex hypothesis".
That has been enough to keep parts of Canada that would otherwise be covered in glaciers, ice-free.Of course, this is a difficult hypothesis to test.
Although they offer some experimental support for this position [13], it seems a difficult hypothesis to explain in functional terms.
It is a difficult hypothesis to test, but the authors of this work make a big step toward providing an answer.
This is a difficult hypothesis to test; even the C(1)/Ø; C(2)/Ø genotype tested by Dernburg et al. (1996), would be predicted to have threads, as the C(2) was constructed using Y chromosome heterochromatin (Martins et al. 2013), and X-Y threads can be seen in XXY females.
At one point, Alicia Larde Jennifer Connellyy), the M.I.T. student who will marry Nash, breezes into his office, brandishing a proof she has devised for a fiendishly difficult hypothesis.
(Attributing specific advancements in artifact manufacture to the threefold increase in brain size between Pliocene hominins and Homo sapiens is a much more difficult hypothesis to support, as will be discussed later in this section).
Non-significant group differences made conclusions concerning arithmetic, semantic, and phonological fact retrieval rather difficult (hypothesis 3).
This is a difficult to prove hypothesis but, in support of this explanation, we report here that LOXL2i have an additive effect on Snail1-dependent CDH1 silencing (Fig. 2) and that co-expression of LOXL2i and Snail1 increase the amount of Snail1 bound to the E-pal element of CDH1 promoter (Fig. 3B; supplementary material Fig. S1).
Mr. Levitt and Mr. Donohue needed a way to test their hypothesis, a difficult task in the social sciences, where experiments cannot be controlled and repeated as in a laboratory.
"The null hypothesis is a difficult concept.
One student reflected: "The null hypothesis is a difficult concept.
