Single-Construct IPIP Scales

Constructs for which both the original and IPIP versions were administered to the ESCS

Scale Names	Number of Items		Mean Item Intercorrelation		Coefficient Alpha		Correlation	Scoring Key
	IPIP	Original Scale	IPIP	Original Scale	IPIP	Original Scale	IPIP vs. Original Scale

Cognitive Failures (Broadbent et al., 1982)	6 + 4=10	25 + 0=25	.27	.25	.79	.89	.63 [.75]	Key

BIDR (Paulhus, 1991)
---Impression Management	10 + 10=20	10 + 10=20	.20	.18	.82	.82	.79 [.96]	Key
---Self-Deception	5 + 5=10	10 + 10=20	.29	.10	.80	.68	.73 [.99]	Key

Locus of Control (Levenson, 1981)
---Internality [I]	6 + 4=10	8 + 0=8	.20	.17	.71	.58	.53 [.83]	Key
---Powerful Others [P]	6 + 4=10	8 + 0=8	.31	.26	.81	.72	.53 [.69]	Key
---Chance [C]	6 + 4=10	8 + 0=8	.21	.26	.72	.73	.62 [.86]	Key
---Total Locus of Control (I – [P + C])	10 + 10=20	8 + 16=24	.25	.15	.86	.80	.63 [.76]	Key
Locus of Control (Rational Scale)	1 + 4=5		.24		.61		.59 [.84]	Key

Need for Cognition (Cacioppo & Petty, 1982)	6 + 4=10	5 + 5=10	.34	.30	.84	.81	.73 [.88]	Key

Obsessive-Compulsive Disorder (Foa et al., 1998)
---Need for order and cleanliness	6 + 4=10	7 + 0=7	.31	.42	.81	.83	.51 [.62]	Key
---Perfectionism and intrusive thoughts	6 + 4=10	9 + 0=9	.32	.31	.82	.80	.60 [.74]	Key

Optimism (Scheier, Carver, & Bridges, 1994)	4 + 6=10	3 + 3=6	.39	.44	.86	.82	.69 [.82]	Key

Self-Consciousness (Buss, 1980)
---Private Self-Consciousness	6 + 4=10	8 + 2=10	.30	.24	.81	.76	.76 [.97]	Key
---Public Self-Consciousness	8 + 4=12	7 + 0=7	.22	.24	.77	.69	.65 [.89]	Key

Self-Esteem (Rosenberg, 1965)	5 + 5=10	5 + 5=10	.35	.43	.84	.87	.78 [.91]	Key

Self-Monitoring (Snyder, 1974)	7 + 3=10	13 + 12=25	.32	.10	.82	.74	.70 [.90]	Key

Constructs for which only IPIP items were administered to the ESCS^a

Scale Names	Number of Items		Mean Item Intercorrelation		Coefficient Alpha			Scoring Key

ADHD syndrome (Span et al., 2002)	12 + 0 = 12	----------------	.23	----------------	.78	----------------	----------------	Key

Depression (Radloff, 1977)	19 + 3 = 22	----------------		----------------	.93	----------------	----------------	Key

Dissociation (Goldberg, 1999):
---Full Scale	31 + 0 = 31				.90			Key
---Short Version	17 + 0 = 17				.89			Key
---Depersonalization	8 + 0 = 8				.88			Key
---Absorption	8 + 0 = 8				.75			Key
---Amnesia	5 + 0 = 5				.69			Key
Hypomanic traits^b (Eckblad & Chapman, 1986):
---Exhibitionism	9 + 3 = 12		.26		.81			Key
---Mood intensity/change	8 + 4 = 12		.22		.77			Key

Obsessive-Compulsive symptoms (Foa et al., 2002)	12 + 0 = 12	---	.26	---	.81	---	---	Key

Physical Attractiveness (Rational Scale)	6 + 3 = 9		.42		.87			Key

Sensation-seeking facets (Hoyle et al., 2002):
---Dangerous thrill-seeking	8 + 2 = 10		.40		.86			Key
---Impulsive thrill-seeking	10 + 0 = 10		.34		.84			Key
---Calculated thrill-seeking	5 + 5 = 10		.27		.78			Key

Note.All analyses are based on the responses of adult participants from the Eugene-Springfield Community Sample (ESCS). For sample sizes and dates of administration of particular scales, see the ORI Technical Report Vol. 48 No. 1

[Values in brackets are the correlations between the corresponding PAS and IPIP scales when corrected for scale unreliabilities.]

^aThe construction strategy for these scales differs from the strategy for most IPIP scales in that scale construction did not begin by examining correlations between items and external criteria. Rather, a mixed rational-intuitive and internal consistency strategy was used. See the Scale Construction page for more details.

^bThe correlation between the two Hypomania scales is .32 [.41 when corrected for their unreliabilities]. The corresponding correlations among the three Sensation-seeking scales are: D vs. I = .47 [.55]; I vs. C = .45 [.56]; and D vs. C = .62 [.76].

References

Broadbent, D. E., Cooper, P. F., FitzGerald, P., & Parkes, K. R. (1982). The Cognitive Failures Questionnaire (CFQ) and its correlates. British Journal of Clinical Psychology, 21, 1-16.
Buss, A. H. (1980). Self-consciousness and social anxiety. San Francisco: W. H. Freeman.
Cacioppo, J. T., & Petty, R. E. (1982). The need for cognition. Journal of Personality and Social Psychology, 42, 116-131.
Eckblad, M., & Chapman, L. J. (1986). Development and validation of a scale for hypomanic personality. Journal of Abnormal Psychology, 95, 214-222.
Foa, E. B., Huppert, J. D., Leiberg, S., Langner, R., Kichic, R., Hajcak, G., & Salkovskis, P. M. (2002). The Obsessive-Compulsive Inventory: Development and validation of a short version. Psychological Assessment, 14, 485-496.
Foa, E. B., Kozak, M. J., Salkovskis, P. M., Coles, M. E., & Amir, N. (1998). The validation of a new obsessive-compulsive disorder scale: The Obsessive-Compulsive Inventory. Psychological Assessment, 10, 206-214.
Goldberg, L. R. (1999). The Curious Experiences Survey, a revised version of the Dissociative Experiences Scale: Factor structure, reliability, and relations to demographic and personality variables. Psychological Assessment, 11, 134-145.
Hoyle, R. H., Stephenson, M. T., Palmgreen, P., Lorch, E. P., & Donohew, R. L. (2002). Reliability and validity of a brief measure of sensation seeking. Personality and Individual Differences, 32, 401-414.
Levenson, H. (1981). Differentiating among internality, powerful others, and chance. In H. M. Lefcourt (Ed.), Research with the locus of control construct (Vol. 1, pp. 15-63). New York: Academic Press.
Paulhus, D. L. (1991). Measurement and control of response bias. In J. P. Robinson, P. R. Shaver, & L. S. Wrightsman (Eds.), Measures of Personality and Social Psychological Attitudes: Vol. 1. Measures of Social Psychological Attitudes (pp. 17-59). New York: Academic Press.
Radloff, L. S. (1977). The CES-D Scale: A self-report depression scale for research in the general population. Applied Psychological Measurement, 1, 385-401.
Rosenberg, M. (1965). Society and the adolescent self-image. Princeton, NJ: Princeton University.
Scheier, M. F., Carver, C. S., & Bridges, M. W. (1994). Distinguishing optimism from neuroticism (and trait anxiety, self-mastery, and self-esteem): A reevaluation of the life orientation test. Journal of Personality and Social Psychology, 67, 1063-1078.
Snyder, M. (1974). Self-monitoring of expressive behavior. Journal of Personality and Social Psychology, 30, 526-537.
Span, S. A., Earleywine, M., & Strybel, T. Z. (2002). Confirming the factor structure of attention deficit hyperactivity disorder symptoms in adult, nonclinical samples. Journal of Psychopathology and Behavioral Assessment, 24, 129-136.

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Single-Construct IPIP Scales

Constructs for which both the original and IPIP versions were administered to the ESCS

Constructs for which only IPIP items were administered to the ESCSa

References

Constructs for which only IPIP items were administered to the ESCS^a