from wikipedia The internal consistency of the NEO scales was assessed on 1,539 individuals (McCrae & Costa,2010). The internal consistency of the NEO PI-R was high, at: N = .92, E = .89, O = .87, A = .86, C = .90. The internal consistency of the facet scales ranged from .56 to .81. The internal consistency of the NEO PI-3 was consistent with that of the NEO PI-R, with α ranging from .89 to .93 for the five domains. Internal consistency coefficient from the facets, with each facet scale comprising fewer items than each of the Big Five scales, were necessarily smaller, ranging from .54 to .83 (McCrae & Costa,2010).

The NEO has been translated into many languages. The internal consistency coefficients of the domain scores of a translation of the NEO that has been used in the Philippines are satisfactory. The alphas for the domain scores range from .78 to .90 (Church & Katigbak, 2002), with facet alphas having a median of .61 (Katigbak et al. 2002). Observer-ratings NEO PI-R data from 49 different cultures was used as criterion in a recent study which tested whether individuals’ perceptions of the “national character” of a culture accurately reflected the personality of the members of that culture (it did not) (Terracciano et al. 2005).

Neo Five Factor Inventory 3

The test-retest reliability of the NEO PI-R has also been found to be satisfactory. The test-retest reliability of an early version of the NEO after 3 months was: N = .87, E = .91, O = .86 (McCrae & Costa, 1983). The test-retest reliability for over 6 years, as reported in the NEO PI-R manual, was the following: N = .83, E = .82, O = .83, A = .63, C = .79. Costa and McCrae pointed out that these findings not only demonstrate good reliability of the domain scores, but also their stability (among individuals over the age of 30). Scores measured six years apart varied only marginally more than scores measured a few months apart (Costa & McCrae, 1992).

The short version, the NEO-Five Factor Inventory (NEO-FFI), has 60 items (12 items per domain). The NEO PI-R and NEO-FFI were updated in 2010 in a manual called the NEO Inventories for the NEO Personality Inventory-3, NEO Five-Factor Model 3, and NEO Personality Inventory-Revised. Vised NEO Personality Inventory (NEO–PI–R) and NEO Five-Factor Inventory (NEO-FFI) Professional Manual (Costa & McCrae, 1992) for validity checks, random re-sponding, and missing items,1 and all further analyses were conducted on the 500 respondents who had valid protocols for both Form S and Form R.2 Participants resided in 26.

Revised Neo Personality Inventory And Neo Five-factor Inventory Professional Manual

The psychometric properties of NEO PI-R scales have been found to generalize across ages, cultures, and methods of measurement(McCrae et al. 2011).