|Another Version of Red|
"According to the study, states with strict regulations in their communities — such as dry counties, frequent death penalty sentences, strict school discipline and gay marriage bans — are "tight." Everything from the numbers of cops per capita to rates of substance use to the availability and access to booze, were considered when classifying some states as "tighter" — meaning "strongly enforced rules and little tolerance for deviance" — than their "loose" neighbors, in this case meaning states with "greater tolerance for deviance."
There's considerably more that went into it, and reading the source that is referenced above will give you a fuller picture. I cannot say I'm very surprised by this.