Chemistry Class (track)
by Elvis Costello And The Attractions
Year: 1979
From the album Armed Forces (track #11)
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Chemistry Class appears on the following album(s) by Elvis Costello And The Attractions:
- Armed Forces (track #11) (this album) (1979)
Upcoming concerts
Listen to Chemistry Class on YouTube
Chemistry Class ratings
Average Rating = (n ÷ (n + m)) × av + (m ÷ (n + m)) × AVwhere:
av = trimmed mean average rating an item has currently received.
n = number of ratings an item has currently received.
m = minimum number of ratings required for an item to appear in a 'top-rated' chart (currently 10).
AV = the site mean average rating.
| Rating | Date updated | Member | Track ratings | Avg. track rating |
|---|---|---|---|---|
| 01/23/2026 18:44 | bonnequestion | 16,309 | 75/100 | |
| 01/19/2026 19:09 | Exist-en-ciel | 78,964 | 70/100 | |
| 11/05/2025 02:01 | Andras | 213 | 86/100 | |
| 07/06/2025 16:52 |  Igtonumama | 31,389 | 81/100 | |
| 06/01/2025 18:51 | BurndenAce | 4,939 | 78/100 |
Rating metrics:
Outliers can be removed when calculating a mean average to dampen the effects of ratings outside the normal distribution. This figure is provided as the trimmed mean. A high standard deviation can be legitimate, but can sometimes indicate 'gaming' is occurring. Consider a simplified example* of an item receiving ratings of 100, 50, & 0. The mean average rating would be 50. However, ratings of 55, 50 & 45 could also result in the same average. The second average might be more trusted because there is more consensus around a particular rating (a lower deviation).
(*In practice, some tracks can have several thousand ratings)
This track is rated in the top 7% of all tracks on BestEverAlbums.com. This track has a Bayesian average rating of 79.6/100, a mean average of 80.1/100, and a trimmed mean (excluding outliers) of 80.1/100. The standard deviation for this track is 10.3.
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