I'm a former director of admissions at Cornell. Here are my 4 tips for writing a successful application for a highly selective college.

• John Morganelli Jr. worked as the director of admissions at Cornell University.
• He said there are subtle but important differences between Ivy-level and NYU-level applications.

This as-told-to essay is based on a transcribed conversation with John Morganelli Jr., a former Director of Admissions at Cornell University and the current Director of College Admissions for Ivy Tutors Network, about his experience with admission to elite colleges in the United States. The following has been edited for length and clarity.

College prep in the United States starts early. The summer after eighth grade, going into ninth grade, when students should start thinking about what clubs to join in high school. If you want to get into a US college and you wait until 10th and 11th grades, you may not have enough time to create the depth in the application you're looking for.

If you have good grades, you can get into a good college. But there's a subtle difference between an application that will get a child into an Ivy-level school versus an NYU-level school. Here are my insider tips from working as the director of admissions at Cornell University.

Prospective major selection can impact your chances

When I was the Director of College Admissions at Cornell, managing institutional priorities was my biggest job. Elite colleges want diversity — ethnic, intellectual, academic, and social. One of the things that can make students more attractive to a top-tier school is their prospective major.

When you apply to a university, you first apply to the college: arts and sciences, engineering, or business college. Moving between colleges is difficult, but you don't have to declare your major until the second semester of your sophomore year. You can pick any major you have the grades for; it doesn't have to be what's on the application.

The prospective major is just the lens through which readers look at your application. Some majors are more competitive than others. Computer science and pre-med are competitive, but if you say on your application that you want to major in anthropology, the popularity would be very low.

Anthropology is housed in the same college as these more competitive programs but receives fewer applications. And the quality of the apps for anthropology — the engagement, the research, and the objective achievement — would be more diverse because the field is more broad.

Consider applying with a secondary or tertiary interest that may not be your long-term goal but would allow you a significantly easier pathway into the college type you want.

Activity lists are a needle mover in an application

The activity list is a focused list of your extracurricular activities. You want to add some personality and contribution-oriented language.

Many students struggle with it and treat it like a résumé by just explaining their duties.

Admissions officers want to understand your perspective, whatever activity you choose. If it was the school newspaper, what drew you specifically to this activity, and how did you make a difference in this role? Be clear about your contribution.

Clubs like the newspaper and the model UN are easily adaptable as precursors to various academic disciplines.

Don't leave the additional information section blank

The biggest opportunity students don't capitalize on is the additional information section.

90% of the apps we received were submitted with no additional information.

But you have 650 words available in that section. Use that section for what I call "evidence" — proof that you're already engaged with your prospective major in your community.

Conduct independent research with a community-oriented, information-sharing or advocacy aspect. Formulate a research question you want to know about independently or with a teacher's supervision.

The question could be, "Which groups are left out of public communication about injury prevention?" Write the answer as a paper.

Then, do some additional outreach on that topic in your local community. Maybe write an op-ed for the local newspaper, or attend a council meeting, and speak during the open forum. Get a video or a press clipping of that, and include the public outreach and the research paper's abstract in the additional information section.

Admissions officers glancing at this section will immediately recognize how passionate an applicant is. An application with this extra step will look a lot different than 99% of the students in the country.

Top colleges want you to have a personal brand

The acronym PAGE is a helpful reminder of the four things that make an application stand out.

"P" stands for perspective, "A" for activity or action, "G" is your academic goal, and "E" is ethos.

The difference between admitted and waitlisted students is the clear academic goal: your prospective major or a topic like housing insecurity in rural areas. The more specific, the better. The activities and actions you list should support that goal.

Most students who apply to Ivy League schools have clear goals and activities that support those goals. The differentiator is perspective; how they specifically approach life.

Ethos stands for the application's brand or theme, which should reflect all these elements. We write one for every student. It's about two sentences long and explains the student's values. For example, "I believe that a person must embrace being empathetic to overcome a lack of connection and foster meaningful relationships," or "I believe that being audience-centered, engaging, and adaptive in communication is essential to fostering meaningful engagement and effectively reaching diverse groups."

Infuse these qualities across all your activities, creating a brand or theme in the app. Tie your activity descriptions back to the ethos.

An admissions officer wants to understand the value you're adding to the community. Otherwise, it's just who's the smartest with the highest grades. The easiest way to do that is to create a brand.

Since pivoting to higher education consulting, I have used this strategy to help many students get accepted into Ivy League schools.