Niche Smartest Students Ranking Methodology
The Smartest Students ranking assesses the intelligence of the students at traditional four-year colleges and universities in the United States. It uses data sourced from various government and public data sets, Niche's own proprietary data, and 83,762 opinion-based survey responses about students from 55,044 current students and recent alumni.
A high ranking in Smartest Students generally indicates that:
- Enrolled students scored very well on SAT/ACT tests;
- Students report that their peers on campus are very intelligent.
Colleges Assessed by this Ranking
At the time of calculation, our database contained records for 2,245 public and private, traditional four-year colleges and universities across the United States. For the purposes of this ranking, a "traditional" college is considered to be any accredited, non-profit post-secondary institution that primarily offers four-year degree programs (as opposed to two-year or less). Some colleges were not included in this ranking if: (1) they were not located in one of the 50 U.S. states, Puerto Rico, or the District of Columbia; (2) they had fewer than 100 full-time undergraduate students; or (3) they had insufficient data (see below). The final ranking results in 942 colleges receiving a grade, with all of those also receiving a numerical ranking.
|Student Survey Responses||
Student opinions about the intelligence of their peers at the college they currently or recently attend(ed). Includes 83,762 reviews and opinions from 55,044 unique students. Minimum 13 unique students required at each college.
|SAT/ACT 25th Percentile||Composite SAT/ACT (normalized to the same scale) of the 25th percentile of enrolled students.||U.S. Department of Education||35%|
|SAT/ACT 75th Percentile||Composite SAT/ACT (normalized to the same scale) of the 75th percentile of enrolled students.||U.S. Department of Education||30%|
The process used to compute this ranking was as follows:
- First, we carefully selected the factors listed above to represent a healthy balance between statistical rigor and practical relevance in the ranking.
- Next, we evaluated the data for each factor to ensure that it provided value for the ranking. (The factor needed to help distinguish colleges from each other and accurately represent each college.) Because there are different factor types, we processed them differently:
- Factors built from student-submitted survey responses were individually analyzed to determine a required minimum number of responses. After this, responses were aggregated. We logically have a higher degree of confidence in the aggregated score for colleges with more responses, so a Bayesian method was applied to reflect this confidence.
- Factors built from factual information were inspected for bad data, including outliers or inaccurate values. Where applicable, this data was either adjusted or completely excluded depending on the specific data.
- How different weights impacted the distribution of ranked colleges;
- Niche student user preferences and industry research;
- Each factor's contribution to our intended goal of the ranking described in the introduction above.
- Colleges missing the data for 50 percent or more of the factors (by weight) were completely excluded. They did not qualify for the numerical ranking or a grade. Note: This exclusion occurred before calculation of the final z-score.
- Colleges that had all of the factors and more than 500 full-time undergraduate students were deemed eligible for both a grade and a numerical ranking. Colleges that did not have all of the factors or did not meet enrollment requirements were not included in the numerical ranking and received a grade only.
- The numerical ranking was created by ordering each college (when qualified) based on the final z-score discussed in step 5.
- Grades were determined for each college (when qualified) by taking the ordered z-scores (which generally follow a normal distribution) and then assigning grades according to the process below.
Grading Process for This Ranking
While our ranking shows the Top 100 colleges, we use grades to provide the user some context to those rankings and also to provide insight into colleges that did not make the Top 100. It's important to focus on more than just the number in the ranking. Given the high number of colleges included in this ranking, there may not be a large gap between the 15th and 30th ranked colleges. In reality, both are exceptional colleges when compared to the total population of all colleges nationwide. Grades are assigned based on how each college performs compared to all other colleges included in the ranking by using the following distribution of grades and z-scores:
|A+||1.96 ≤ z||53||5.63%|
|A||1.28 ≤ z < 1.96||50||5.31%|
|A-||0.84 ≤ z < 1.28||67||7.11%|
|B+||0.44 ≤ z < 0.84||67||7.11%|
|B||0.00 ≤ z < 0.44||171||18.15%|
|B-||-0.44 ≤ z < 0||181||19.21%|
|C+||-0.84 ≤ z < -0.44||177||18.79%|
|C||-1.28 ≤ z < -0.84||125||13.27%|
|C-||-1.96 ≤ z < -1.28||51||5.41%|
Note that we intentionally did not assign a grade below C- to any colleges.
Of the 2,245 colleges analyzed, 942 received a grade, with each also receiving a numerical ranking. The top ranked college was University of Chicago which scored very highly on both SAT/ACT scores and peer assessments and had a final score that was nearly 3.5 standard deviations above the mean college. Stanford University, Massachusetts Institute of Technology, Yale University, Rice University, and Washington University in St. Louis also performed exceptionally well, scoring just below University of Chicago.
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