Characteristics of the IPIP Scales Measuring Constructs Similar to Those in the 30 NEO-PI-R Facet Scales (Johnson, 2011)
SCALE NAMES		Number of Items			Mean Item Intercorrelation			Coefficient Alpha			Correlations
IPIP	NEO	NEO	IPIP 300	IPIP 120	NEO	IPIP 300	IPIP 120	NEO	IPIP 300	IPIP 120	IPIP300 vs. NEO	IPIP120 vs. NEO
Neuroticism		+   -	+   -	+   -
ANXIETY	Anxiety (N1)	4+4=8	5+5=10	4+0=4	.38	.34	.39	.83	.83	.71	.76 [.92]	.76 [.99]
ANGER	Angry Hostility (N2)	5+3=8	5+5=10	3+1=4	.34	.43	.47	.80	.88	.77	.77 [.92]	.71 [.90]
DEPRESSION	Depression (N3)	6+2=8	7+3=10	3+1=4	.42	.44	.51	.84	.89	.80	.81 [.94]	.76 [.93]
SELF-CONSCIOUSNESS	Self-Consciousness (N4)	5+3=8	6+4=10	3+1=4	.26	.28	.30	.74	.80	.63	.73 [.95]	.60 [.88]
IMMODERATION	Impulsiveness (N5)	4+4=8	5+5=10	1+3=4	.24	.25	.36	.72	.77	.69	.74 [.99]	.65 [.92]
VULNERABILITY	Vulnerability (N6)	3+5=8	5+5=10	3+1=4	.35	.33	.38	.79	.82	.70	.78 [.97]	.74 [.99]
Extraversion
FRIENDLINESS	Warmth (E1)	6+2=8	5+5=10	2+2=4	.35	.41	.45	.80	.87	.77	.76 [.91]	.68 [.87]
GREGARIOUSNESS	Gregariousness (E2)	4+4=8	5+5=10	2+2=4	.35	.27	.28	.80	.79	.60	.78 [.98]	.73 [.99]
ASSERTIVENESS	Assertiveness (E3)	4+4=8	5+5=10	3+1=4	.33	.35	.44	.80	.84	.75	.81 [.99]	.73 [.94]
ACTIVITY LEVEL	Activity (E4)	5+3=8	5+5=10	3+1=4	.27	.20	.35	.74	.71	.68	.72 [.99]	.63 [.89]
EXCITEMENT-SEEKING	Excitement-Seeking (E5)	6+2=8	8+2=10	4+0=4	.20	.27	.34	.65	.77	.67	.67 [.95]	.59 [.89]
CHEERFULNESS	Positive Emotions (E6)	4+4=8	8+2=10	4+0=4	.37	.30	.39	.81	.81	.71	.77 [.95]	.69 [.91]
Openness to Experience
IMAGINATION	Fantasy (O1)	3+5=8	6+4=10	4+0=4	.36	.32	.37	.81	.82	.70	.74 [.91]	.69 [.92]
ARTISTIC INTERESTS	Aesthetics (O2)	5+3=8	5+5=10	2+2=4	.41	.38	.40	.84	.85	.72	.80 [.95]	.76 [.98]
EMOTIONALITY	Feelings (O3)	5+3=8	5+5=10	2+2=4	.28	.30	.34	.75	.81	.67	.71 [.91]	.65 [.92]
ADVENTUROUSNESS	Actions (O4)	3+5=8	4+6=10	1+3=4	.18	.25	.33	.64	.77	.66	.72 [.99]	.62 [.95]
INTELLECT	Ideas (O5)	5+3=8	5+5=10	1+3=4	.39	.39	.47	.82	.86	.78	.81 [.96]	.75 [.94]
LIBERALISM	Values (O6)	3+5=8	3+7=10	2+2=4	.31	.39	.47	.78	.86	.76	.71 [.87]	.63 [.82]
Agreeableness
TRUST	Trust (A1)	5+3=8	6+4=10	3+1=4	.43	.32	.38	.84	.82	.70	.78 [.94]	.73 [.95]
MORALITY	Straightforwardness (A2)	3+5=8	2+8=10	0+4=4	.26	.24	.29	.74	.74	.62	.65 [.88]	.54 [.80]
ALTRUISM	Altruism (A3)	5+3=8	5+5=10	2+2=4	.26	.26	.33	.72	.77	.65	.68 [.91]	.54 [.79]
COOPERATION	Compliance (A4)	3+5=8	3+7=10	0+4=4	.25	.22	.26	.72	.72	.56	.72 [.99]	.62 [.98]
MODESTY	Modesty (A5)	4+4=8	4+6=10	0+4=4	.26	.25	.31	.73	.76	.63	.71 [.95]	.64 [.94]
SYMPATHY	Tender-Mindedness (A6)	6+2=8	4+6=10	2+2=4	.17	.23	.35	.61	.75	.68	.62 [.92]	.55 [.85]
Conscientiousness
SELF-EFFICACY	Competence (C1)	5+3=8	6+4=10	4+0=4	.26	.28	.26	.71	.79	.57	.68 [.91]	.59 [.93]
ORDERLINESS	Order (C2)	3+5=8	5+5=10	1+3=4	.28	.33	.44	.74	.83	.76	.77 [.98]	.68 [.91]
DUTIFULNESS	Dutifulness (C3)	6+2=8	5+5=10	2+2=4	.24	.19	.19	.68	.71	.47	.60 [.86]	.53 [.94]
ACHIEVEMENT-STRIVING	Achievement Striving (C4)	5+3=8	7+3=10	2+2=4	.26	.28	.35	.72	.79	.68	.71 [.94]	.57 [.81]
SELF-DISCIPLINE	Self-Discipline (C5)	4+4=8	5+5=10	2+2=4	.35	.37	.34	.81	.85	.66	.77 [.93]	.72 [.98]
CAUTIOUSNESS	Deliberation (C6)	5+3=8	3+7=10	0+4=4	.23	.25	.38	.70	.76	.70	.69 [.95]	.61 [.87]
Mean		4+4=8	5+5=10	2+2=4	.30	.30	.36	.76	.80	.68	.73 [.94]	.66 [.91]
Note.  [Values in brackets are correlations corrected for unreliability.]
Johnson, J. A. (2011, June). Development of a short form of the IPIP-NEO Personality Inventory. Poster presented at the 2nd Biennial Meeting of the Association for Research in Personality, Riverside, CA. http://www.personal.psu.edu/~j5j/papers/ARP2011IPIP-NEO.pdf
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