How does the term "reformed" differ from the term "evangelical"? I read the article and don't recall seeing any clear definitions. I would consider myself Reformed and Evangelical. I try to present The Gospel at every opportunity, just as I believe all that are Reformed do as well.
Therefore, if a person has to pick one designation, reformed works for me because it implies the Scriptural mandate to preach the Gospel to all men. To say we are reformed and evangelical is somewhat redundant.
Folks that claim to be reformed should subscribe to one of the reformed confessions - Baptist Confession of Faith, Westminster Confession, Belgic Confession, Second Helvetic, Canons of Dort, etc.
Evangelical has become so broad as to be almost meaningless at this point. A few weeks ago, I would have said that it covered anyone who has professed faith in Christ as his or her savior, but a recent survey indicates that perhaps some who ought not be considered Christian flock under that banner. “While 48 percent of all evangelicals surveyed think only born-again Christians will go to heaven, 45 percent said they do not believe that.” http://pewforum.org/news/display.php?NewsID=3267
Historically, the term Evangelical referred to those who believed in the necessity, authority, sufficiency, and perspicuity of Scripture contra the Romanist system and it’s incorporation of Greek pagan philosophy in which the sinner becomes saint through a metaphysical process of elevation on the “scale of being” which makes Scripture insufficient on it’s own right and requires that the Church is itself a continuing organ of revelation to help the sinner elevate his being.
As others have noted, the term today has more to do with an individuals experience rather than a position on the nature of Scripture.