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. 2010 Aug 31;5(8):e12412. doi: 10.1371/journal.pone.0012412

Table 5. Reliabilities.

Scale Items Cronbach's α Revelle's β ρSEM McDonald's ωh McDonald's ωtot
Original scales
Altered state of consciousness 66 .96 [.96, .97] .61 .65 .97
Oceanic boundlessness 27 .95 [.94, .96] .71 .74 .96
Dread of ego dissolution 21 .93 [.92, .94] .74 .74 .94
Visionary restructuralization 18 .91 [.90, .92] .73 .70 .93
New scales
Experience of unity 5 .88 [.87, .90] .86 .88 [.87, .90]
Spiritual experience 3 .77 [.74, .81] .73 .78 [.73, .83]
Blissful state 3 .82 [.79, .84] .79 .82 [.79, .85]
Insightfulness 3 .73 [.69, .77] .69 .74 [.69, .79]
Disembodiment 3 .82 [.80, .85] .77 .82 [.79, .86]
Impaired control and cognition 7 .85 [.84, .87] .80 .86 [.83, .88]
Anxiety 6 .89 [.88, .90] .83 .89 [.87, .92]
Complex imagery 3 .80 [.77, .83] .77 .80 [.77, .83]
Elementary imagery 3 .84 [.81, .86] .73 .86 [.83, .88]
Audio-visual synesthesiae 3 .91 [.89, .92] .89 .91 [.89, .93]
Changed meaning of percepts 3 .79 [.77, .82] .75 .80 [.76, .84]

Note. Numbers in brackets indicate 95% confidence intervals.