However, the difficulty of estimating individuals' preferences in SP studies is well established [9, 18] and we, therefore, do not agree that there is support that SP are superior to RP methods.
Given the difficulty of measuring mate preferences in the wild, a potential way forward is to examine factors that may influence estimates of heritability in female mate ornamentation.
This complexity measure correlates nicely with a number of well-attested processing issues, such as the difficulty of center embedding, garden path effects, attachment preferences, and preferred scope construals in ambiguous constructions.
The same true in Japan[ 34].Industry critics have pointed to methodological flaws such as vague definitions of therapeutic class and the difficulty of obtaining good measures for societal preferences[ 35].
Housing has proven to be an especially difficult sector given the many particularities of the market, people's needs and preferences, regulations and the difficulty of making the interests of different market players converge in a win-win dynamic.
The results of the present study confirm the difficulty of developing such a framework since landscape preferences related to some categories differ not only among participant groups but also among landscape types.
The difficulty of maintaining a high level of poetic intensity may account for the preference for short verse forms that could be polished with perfectionist care.
One of the reasons for this preference, according to Kipp et al. [22], is the difficulty of virtual signing approaches to represent emotions and movements with less rigidity.
