16PF FIFTH EDITION QUESTIONNAIRE
A comprehensive measure of the basic traits comprising normal adult personality.

QUALIFICATION LEVEL
IPAT's psychological testing materials are restricted to qualified purchasers. Certain testing materials require more stringent qualifications than others, with emphasis on a consideration of the level of skill and training required to use the material appropriately.

The 16PF Questionnaire (U.S. English version) is a Level 2 instrument. To purchase Level 2 materials, IPAT requires a Master's degree in psychology, counseling, social work, or a related field, plus relevant graduate-level coursework in Tests and Measurement.

APPLICATIONS
As a broad measure of normal personality, the 16PF Questionnaire is useful in a variety of settings to predict a wide range of life behaviors. Popular uses include: selection, management development, outplacement consulting, team building and development, career counseling, individual and couple's counseling, and research.

SCALES
16 Primary Factor Scales:

Warmth Reasoning Emotional Stability Dominance Liveliness Rule-Consciousness

Social Boldness Sensitivity Vigilance Abstractedness Privateness Apprehensiveness

Openness to Change Self-Reliance Perfectionism Tension

5 Global Factor Scales:

Extraversion Anxiety Tough-Mindedness Independence Self-Control

ADDITIONAL SCORES
The 16PFworld.com Report provides Response Style Indices for Impression Management, Infrequency, and Acquiescence.

NORMS - U.S. ENGLISH VERSION
The normative sample (n=10,261) was selected based upon a stratified random sampling procedure using sex, race, and age variables that reflect the 2000 U.S. Census figures. Combined-sex norms plus separate norms for men and women are available.

		Sample		Population (2000 Census)
Male		49.9%		49.1%
Female		50.1		50.9
White		77.9		77.4
Black/African American		10.8		11.4
American Indian		0.8		0.8
Asian American		3.6		3.8
Multiracial		1.5		1.9
Other		5.4		4.7
Hispanic origin		8.6		11.0

For additional information about these recently-updated U.S. English norms, click here.

RELIABILITY
Internal consistency averages .76. Test/retest reliabilities average .80 for two-week interval, and .70 for two-month interval.

VALIDITY
Validity studies presented in the 16PF Fifth Edition Technical Manual provide considerable evidence of the construct validity of the primary and global scales.

FORMS
1 Form; 185 Items

ADMINISTRATION TIME
30 - 40 minutes (untimed)

AGE RANGE
16 years and above.

READING LEVEL
Fifth grade (Average U.S. 10-year old)

INTERPRETIVE REPORTS
At present, the 16PFworld.com Report is the only report available through the 16PFworld.com online service.

Test data from the U.S. English version can be transferred to your computer for use in generating other 16PF reports using IPAT's OnSite software. Consult with your local test publisher regarding the availability of this software in your location.

AUTHORS
Raymond B. Cattell, Ph.D., D.Sc.; A. Karen Cattell, M.A.; Heather E.P. Cattell, Ph.D.

Portions of this site were extracted from the 16PF Fifth Edition Administrator's Manual authored by Mary T. Russell, M.S., and Darcie Karol, M.A.  Website definitions of the Primary Factors and Global Factors were authored by Mary T. Russell, M.S. and Heather E. P. Cattell, Ph.D.