The Instruments


The Infant Behavior Questionnaire (IBQ and IBQ-R)

Sarah at 4 monthsThe original IBQ was developed by Dr. Rothbart in the early 1980s and first reported in the 1981 Child Development article, "Measurement of Temperament in Infancy" (Rothbart, 1981).This early form of the instrument assessed 6 domains of infant temperament (activity level, soothability, fear, distress to limitations, smiling and laughter, and duration of orienting).The items on the IBQ ask parents to rate the frequency of specific temperament-related behaviors observed over the past week (or sometimes 2 weeks).

In 1998, Dr. Rothbart and her colleague, Dr. Masha Gartstein, revised the IBQ by refining the original scales and adding several new scales. The new instrument is referred to as the IBQ-Revised (IBQ-R). Short (91 items; 14 scales) and Very Short (36 items; 3 broad scales) forms of the IBQ-R were developed in 2008

The following non-English versions of the IBQ-R are available for download:

The Questionnaire


The IBQ and IBQ-R have been designed to measure temperament in infants between the ages of 3 and 12 months.The IBQ-R assesses the following dimensions of temperament:


For questions regarding the IBQ or IBQ-R, contact Masha Gartstein at gartstma@wsu.edu (postal mail: Department of Psychology, Washington State University, PO Box 644820, Pullman, WA 99164-4820)


Please note that these questionnaires are to be used for research purposes only. If you are interested in acquiring current versions of these instruments, we request that you first complete our request form, providing us with a brief description of your plans for use of the measures. Following the completion of your research, we request that you contact us to inform us of the results of your project as they relate to the temperament scales.In this way, we hope to coordinate attempts at validation of the scales.

Documentation:

Rothbart, M. K. (1981).  Measurement of temperament in infancy.  Child Development, 52, 569-578.
(PDF PDF Document)

Gartstein, M. A., & Rothbart, M. K. (2003). Studying infant temperament via the Revised Infant Behavior Questionnaire. Infant Behavior and Development, 26 (1), 64-86.
(PDF PDF Document)