Original sentence: A player's plus/minus is increased by one every time his team scores an even strength or shorthanded goal while he is on the ice.It is directly linked to team performance, thus accurate comparisons can only be made between players on the same team.Plus/minus is an ice hockey statistic that measures the team goal differential when a specific player is on the ice.Plus/minus is mainly used to measure defencemen and forwards who play a defensive role since offensive forwards are better measured by scoring statistics such as goals and assists.The statistic is sometimes called the plus/minus ratio even though it is a difference, not a ratio.Whenever the team is scored against while at even strength or on a power play when the player is on the ice, his plus/minus is decreased by one
Edited sentence: A player's plus/minus is increased by one every time his or her team scores a goal either at even-strength or when shorthanded, while the player is on the ice.It is only a minor NHL award, however.Many observers consider plus/minus to be a very questionable statistic, and few put much weight on it.Obviously plus/minus is very dependent upon the team as a whole, and it is often most useful for assessing a player compared to his teammates.Plus/minus is a hockey statistic that measures the goal differential of a player at even strength hockey.The plus/minus statistic is mainly applied to defencemen, mostly because forwards have many other numbers that can better measure their performance.When it is applied to forwards it is to measure their defensive responsibility, which is of course foolish, since half of plus/minus involves offence.Whenever the team is scored against while at even strength or on a powerplay while the player is on the ice, that player's plus/minus is decreased by one