Stability of scores on the Junior Eysenck Personality Inventory in an outpatient population.

This paper reports a test-retest study of the Junior Eysenck Personality Inventory for 257 boys and girls 7 through 16 yr. of age who were receiving psychological services in a public health facility in an urban area of British Columbia. The obtained reliability coefficients of .7 and .8 place the present findings within the context of data reported for the British standardization sample and support the test author's claims over a 30-day period of relative stability of the Junior Eysenck Personality Inventory as a measure of Extraversion and Neuroticism. The support for the test's reliability comes from a rather homogeneous sample of learning and behaviourally disordered children. The usefulness of this inventory for research purposes is discussed.