There has been a tendency for programme evaluators to blame unhelpful beliefs or behaviours of target community members as their key explanatory variables, with insufficient attention paid to how the designs take account of and fit with the local social context.
However, as a general theory of evolutionary causes, the "forces" view is insufficient, and this insufficiency is not remedied by adding chance, contingency and constraints, which are vague explanatory principles, not causes.
But if the "because" in question is causal-explanatory, this seems insufficient to mark the relevant distinction.
The Uppsala model, however, has been criticized because its two explanatory factors may be insufficient to understand international market involvement (Forsgren 2002).
Lack of other demonstrable explanatory variables could be due to insufficient meta-analytic study power.
For example, genetic analyses using new markers, larger sample sizes, and broader geographic sampling could reveal new or more nuanced stock structures, especially because insufficient sampling is always a major detractor to explanatory power of these analyses [20], [27], [28].
Unconditional multivariable logistic regression was used for evaluation of the impact of explanatory variables for key outcome of insufficient FV intake (binary dependent variable).
Limitations of the present study included insufficient data being available for all seasonal training phases and thus low explanatory power of single parameters.
Three studies coincidentally all conducted in Dutch urban regions, have reported some explanatory factors for non-western women's late entry and/or insufficient number of visits [ 14- 16].
However, Nadler and Pérez-Ponce de León [ 33] suggested that, in terms of explanatory power, single locus DNA barcodes and the barcoding-gap are insufficient approaches to delimit species, and concordance of independent information, including other genes, is required.
