A Comparison between the 30 Facet Scales in Costa and McCrae's
NEO Personality Inventory (NEO-PI-R) and the
Corresponding Preliminary IPIP Scales Measuring Similar Constructs
 

SCALE NAMES

   
IPIP NEO
 
Neuroticism
ANXIETY Anxiety (N1)
ANGER Angry Hostility (N2)
DEPRESSION Depression (N3)
SELF-CONSCIOUSNESS Self-Consciousness (N4)
IMMODERATION Impulsiveness (N5)
VULNERABILITY Vulnerability (N6)

Extraversion
FRIENDLINESS Warmth (E1)
GREGARIOUSNESS Gregariousness (E2)
ASSERTIVENESS Assertiveness (E3)
ACTIVITY LEVEL Activity (E4)
EXCITEMENT-SEEKING Excitement-Seeking (E5)
CHEERFULNESS Positive Emotions (E6)

Openness to Experience
IMAGINATION Fantasy (O1)
ARTISTIC INTERESTS Aesthetics (O2)
EMOTIONALITY Feelings (O3)
ADVENTUROUSNESS Actions (O4)
INTELLECT Ideas (O5)
LIBERALISM Values (O6)

Agreeableness
TRUST Trust (A1)
MORALITY Straightforwardness (A2)
ALTRUISM Altruism (A3)
COOPERATION Compliance (A4)
MODESTY Modesty (A5)
SYMPATHY Tender-Mindedness (A6)

Conscientiousness
SELF-EFFICACY Competence (C1)
ORDERLINESS Order (C2)
DUTIFULNESS Dutifulness (C3)
ACHIEVEMENT-STRIVING Achievement Striving (C4)
SELF-DISCIPLINE Self-Discipline (C5)
CAUTIOUSNESS Deliberation (C6)

Mean
 

Number
of Items

IPIP NEO
   
  +   -         +   -     
5+5=10 4+4=8
5+5=10 5+3=8
7+3=10 6+2=8
6+4=10 5+3=8
5+5=10 4+4=8
5+5=10 3+5=8


5+5=10 6+2=8
5+5=10 4+4=8
5+5=10 4+4=8
5+5=10 5+3=8
8+2=10 6+2=8
8+2=10 4+4=8


6+4=10 3+5=8
5+5=10 5+3=8
5+5=10 5+3=8
4+6=10 3+5=8
5+5=10 5+3=8
3+7=10 3+5=8


6+4=10 5+3=8
2+8=10 3+5=8
5+5=10 5+3=8
3+7=10 3+5=8
4+6=10 4+4=8
4+6=10 6+2=8


6+4=10 5+3=8
5+5=10 3+5=8
5+5=10 6+2=8
7+3=10 5+3=8
5+5=10 4+4=8
3+7=10 5+3=8
   
5+5=10 4+4=8

Mean Item
Intercorrelation

IPIP NEO
   
   
.32 .37
.42 .34
.43 .41
.28 .26
.25 .24
.32 .35


.41 .33
.28 .34
.34 .33
.19 .25
.28 .19
.30 .36


.32 .35
.36 .40
.29 .28
.24 .18
.38 .38
.38 .30


.32 .42
.25 .26
.25 .26
.22 .26
.25 .27
.23 .17
 

.27 .25
.33 .28
.20 .23
.27 .21
.36 .34
.24 .23
   
.30 .29

Coefficient
Alpha

IPIP NEO
   
   
.83 .83
.88 .80
.88 .85
.80 .74
.77 .72
.82 .79


.87 .80
.79 .80
.84 .80
.71 .72
.78 .64
.81 .81


.83 .82
.84 .84
.81 .75
.77 .64
.86 .82
.86 .78


.82 .84
.75 .74
.77 .72
.73 .73
.77 .75
.75 .61
 

.78 .70
.82 .74
.71 .67
.78 .67
.85 .80
.76 .70

.80

.75


Correlation

IPIP vs. NEO
 
 
.75 [.90]
.76 [.91]
.80 [.92]
.72 [.94]
.73 [.98]
.77 [.96]
 
 
.76 [.91]
.78 [.98]
.81 [.99]
.70 [.98]
.67 [.95]
.77 [.95]
 
 
.74 [.90]
.80 [.95]
.70 [.90]
.71 [.99]
.80 [.95]
.70 [.86]
 
 
.79 [.95]
.64 [.86]
.67 [.90]
.71 [.97]
.72 [.95]
.61 [.90]
 
 
.66 [.89]
.77 [.99]
.60 [.87]
.70 [.97]
.76 [.92]
.69 [.95]
 
.73 [.94]
Note.  [Values in brackets are correlations corrected for unreliability.]


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