The accompanying table shows Laura's preference ranking for different brands of jeans for 2011 and 2012.Her preferences are ranked from 1 to 4,where 4 is her most-preferred brand and 1 is her least-preferred brand.In 2011,1,439 of the 28,000 females attending Laura's college owned a pair of Joe's Jeans.In 2012,a survey showed that 9,421 of the 28,560 females attending Laura's college owned a pair of Joe's Jeans.Based on this information,the change in Laura's preference ranking for Joe's Jeans from 2011 to 2012 can be best explained by the: 
Definitions:
Social Competence
The capacity to interact effectively with others, including the ability to form and maintain relationships and to navigate social situations.
High Levels
An amount or concentration of a substance that is considered to be above the normal range.
Authoritative
A leadership or parenting style characterized by setting clear expectations and standards while also understanding and respecting the opinions and autonomy of others.
Older Siblings
Children who are born before the subsequent children in a family, often having responsibilities or influence over their younger siblings.
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