The phrase "a factor and a" is grammatically correct and can be used in written English.
It can be used when discussing multiple elements or components that contribute to a particular outcome or situation.
Example: "In this study, we identified a factor and a variable that significantly influenced the results."
Alternatives: "an element and a" or "a component and a".
"Program suppliers will see PBS as a factor and a solid choice".
Experts no longer believe that coital frequency is a factor, and a new study in mice by researchers in Boston suggests that female mammals are capable of making new eggs throughout their reproductive lives.
In many ectothermic lineages, including lizards, life history traits are plastic and relate to several sources of variation including body size, which is both a factor and a life history trait likely to modulate reproductive parameters.
Occasionally an institution used the test as both a factor and a threshold in selection.
A p-value <0.05 indicates a statistically significant association between a factor and a concordant decision about whether or not SMT is indicated.
An association between a factor and a mental disorder was considered as significant if the statistical significance level was p < 0.05.
As it became more apparent that marketing costs were going to be a factor (and an escalating one at that) social game makers pivoted toward safe-ground ideas and figuring out to get into iPhone.
Odds ratio with 95% CI was used to assess the association between a factor and an outcome variable.
In reviewing these issues, the literature appears to be limited by the use of traditional analytic approaches which examine the relationship between a factor and an outcome.
"Yes, it can be a factor, and yes, it has been a factor".
"I think that fatigue may have been a bit of a factor and we played a lot more guys than they did".
