Skip to main content

Table 3 Internal consistency of the Epworth Sleepiness Scale (ESS) scores in Ethiopian university students

From: Psychometric properties of the Epworth sleepiness scale in Ethiopian university students

  Item-Total
Correlation
Cronbach’s Alpha
if Item Deleted
Communality
Sitting and Reading .61* .72 .42
Watching TV .59* .72 .39
Sitting inactive in a public place (i.e., a theatre) .67* .72 .45
As a car passenger for an hour without a break .64* .72 .40
Lying down to rest in the afternoon .60* .74 .29
Sitting and talking to someone .55* .72 .40
Sitting quietly after lunch without alcohol .57* .74 .30
In a car, while stopping for a few minutes in traffic .55* .73 .33
  1. *p < 0.01