There are, of course, other possible explanations, assuming that Rizzo's account is more reliable than Bush's.
Possible explanations are that IF is more reliable and reproducible in achieving an anatomic reduction than EF, which is supported by the radiographic results in our analysis.
Of all 20 loci, however, most showed no more than four alleles per individual (Table 2); no reliable explanation could be provided for this considering that the inheritance pattern of M. spicatum was ambiguous.
The first explanation is the selection for specialization on abundant species (because abundant species constitute a more reliable source of reward than rare species with fluctuating populations).
Finally, several panelists supplied explanations for their endorsement of the statement suggesting that within-study comparisons are more reliable than between-study comparisons.
One possible explanation is that it may be due to the multivariate design, which is able to produce more reliable estimates than those based on any one single rater.
We won't get a reliable explanation answer from the fossil fuels industry, whose typical response to these all-too-frequent spikes is, "More drilling + less environmental protection = cheaper gas prices".
Hardware is ultimately more reliable".
