This College Choice Report series follows the ACT-tested high school graduating class of 2014, focusing on specific testing behaviors that may expand college opportunities available to students. This is an important topic for enrollment managers and admissions officers to consider, as students' participation in these testing behaviors have implications for colleges' chances to recruit, advise, and place these prospective students. Part 1 of this series, "Preferences and Prospects" (released October 2014), provides both 10-year trends and a profile of the current high school graduating class regarding such testing behaviors as the high school grade level in which students first took the ACT® college readiness assessment, the rate at which students elected to send score reports to colleges at the time of ACT registration, and the rate at which students opted into the ACT Educational Opportunity Service (EOS). The following key findings are summarized in this report: (1) More high school students than ever before take the ACT; (2) Students are taking the ACT earlier in high school; (3) More students withhold their test scores during ACT registration; (4) Additional score reports are rising, and most are sent by withholders;and (5) More students take advantage of the ACT Educational Opportunity Service.