拼分操作不是ACT官方提供的。

ACT官方在常見問題（FAQ）中回答過：ACT只會遞交咱們每次考試日的全部成績，包括總分、英文分、閱讀分、數學分、科學分和寫作分數。

拼分，是學校的操作。

也就是說，如果咱們申請的學校接受拼分，他們就會按照一定的規則來完成拼分算分的動作。作為申請者，我們不用提交自己的拼分成績，只要把每一次的考試成績提交給校方就可以了。
那校方會用什么規則來拼分算分呢？規則一共3種。
1、參考最高小分。熱門大學常用機制。
2、拼接各科最高分算分。
3、參考最高分。
其中，規則1有22所學校使用，規則2、3幾乎平分了使用拼分規則的剩下132所學校。根據我們的核查，規則3使用的學校要稍微多一點。

規則1：參考最高分
Purdue、MIT、Stanford這些世界高排名大學一般都使用這種參考制。
以下是麻省理工(MIT）的招生辦寫的拼分規則原文
If you take the same test (SAT, ACT, or an SAT Subject Test) multiple times, we will consider the highest score achieved in each section（考慮每個部分的最高分）. This superscoring also applies to students who submit scores from both the "old" and "new" SAT. We do this in order to consider all applicants in their best light.
Students are free to use the College Board's Score Choice option and the ACT's option to submit the scores of your choice（利用ACT官方選項去遞交自己選好的ACT分數） as well.

規則2：拼接各科最高分算分
以下是top 25美國大學里唯一采用算分拼分規則的Washington University的拼分規則原文：
For the ACT, Washington University considers your highest section scores across all the test dates that you submit（在所有提交的成績里，考慮最高的那個小分）. Each time you submit scores, we will update your record with any new high scores（每一次你提交分數后，我們會用你的新高分更新你的記錄）.

規則3：參考最高分
以下是邁阿密大學的拼分規則原文：
The Admission Committee will consider all official test scores from multiple test dates（考慮所有的提報分數）. They will use the highest composite score from among each test that you’ve taken（使用所有成績中最高的總分）. This is called super scoring. There is no limit to the number of test scores you may submit to us for your application.

注意，帶*表明學校規則為規則1。由于工作量太大，我沒有一一核查其他學校究竟是規則2、3中的哪一個，所以在本文的最后——如何自己核查夢校的拼分規則——給大家提供了豐衣足食的方法。美聯出國考試的學員們可以向自己的SA確認。
Albion College
Albright College
Alfred University
Allegheny College
Amherst College
Babson College
Ball State University
Bard College
Baylor University
Bates College*
Beloit College
Bentley College
Boston College
Boston University*
Brandeis University
Butler University
California Institute of Technology*
California State University System (not UC system)
California Polytechnic (Cal-Poly, San Luis Obispo)
Champlain College
Claremont-McKenna
Clark University
Colby College
Colgate University
Columbia University*
Colombia College (MO)
Colorado College
Connecticut College
Cornell College
Denison University
DePauw University
Dickinson College*
Drew University
Drexel University
Duke University
Duquesne University
Earlham College
Eastman College of Music
Embry-Riddle University
Eckerd College
Elon University
Emerson College
Florida Atlantic University
Florida State University
Franklin University (Switzerland)
Furman University
George Mason University
Georgia Tech*
Gettysburg College
Gonzaga University
Goucher College
Grinell College
Hamilton College*
Hampden-Sydney College
Hanover College
Harvey Mudd*
Haverford College
Hawaii Pacific University
Hendrix College
High Point University
Hiram College
Hollins University
College of Holy Cross
Illinois Institute of Technology
Indiana University-Bloomington
Ithaca College
Johns Hopkins University
Kalamazoo College
Kenyon College
Kettering University
Knox College
Lafayette College
Lawrence University
Loyola University in Maryland
Loyola University in New Orleans
Middlebury College
MIT*
Millsaps College
Montana State University
NCAA Clearinghouse
New York University*
Northeastern University
North Carolina State University
Ohio-Wesleyan University
Olin College of Engineering
Pomona College*
Providence College
Purdue University*
Regis University
Rochester Institute of Technology
Rose-Hulman Institute of Technology
San Diego State
Seattle University
Seton Hall
Spring Hill College
Smith College
St. John’s College
St. Mary's - Notre Dame and MN
Stanford University*
Swarthmore College*
Syracuse University
Texas Christian University
Towson University
Trinity College
Troy University
Tufts University
United States Naval Academy
University of Arkansas*
University of Chicago
University of Cincinnati
University of Colorado – Boulder
University of Connecticut*
University of Dayton
University of Delaware
University of Denver
University of Georgia
University of Illinois*
University of Louisiana – Lafayette*
University of Maryland
University of Mary Washington*
University of Massachusetts, Amherst
University of Miami
University of New Haven
University of New Mexico
University of North Carolina-Chapel Hill
University of North Texas*
University of Portland
University of Pittsburgh
University of Puget Sound
University of Redlands
University of Rhode Island
University of Rochester
University of San Diego
University of San Francisco
University of South Florida
University of Tampa
University of Tennessee-Knoxville
University of Vermont
Valparaiso University
Vassar College
Virginia Commonwealth University
Virginia Tech
Wabash College
Wake Forest University*
Washington and Jefferson College
Washington State University
Washington University-St. Louis
Wellesley College*
Wesleyan University
Wheaton College
West Point Academy
Wheaton College
Williams College
Xavier University

如何查詢院校是否支持拼分？

打開院校官網
搜索欄里搜索“superscore”。superscore是拼分的英文講法。
注意拼分規則里score的限定詞。composite score是總分，如果拼分規則采用這個詞，就是規則3，所以，一定要電話或者郵件詢問確認一下是否可以拼小分。可以拼小分的拼分規則里會明確的寫出來subscore、section score這些詞。

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