The NPV-J (Dutch: Junior Nederlandse Persoonlijkheidsvragenlijst, NPV-J; Luteijn, van Dijk, and Barelds, 2005) is a large Dutch personality inventory. The NPV-J consists of 105 mostly positively formulated items and is intended to determine how adolescents between 9 and 15 years of age judge their own behavior. The NPV-J has five subscales; the `InadequacyScale`

data concern scores of 806 adolescents on 28 items measuring inadequacy (one of the subscales). The data are dichotomous (0 = Disagree, 1 = Agree). The original sample consisted of 866 respondents, however 60 all-0s or all-1s response vectors were removed from the data.

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A 806x28 matrix of dichotomous item scores.

Luteijn, F., van Dijk, H., and Barelds, D. P. H. (2005) *NPV-J: Junior Nederlandse Persoonlijkheidsvragenlijst.* Herziene handleiding 2005. Amsterdam: Harcourt Assessments B.V..

Meijer, R. R., and Tendeiro, J. N. (2012) The use of the lz and lz* person-fit statistics and problems derived from model misspecification. *Journal of Educational and Behavioral Statistics*, **37(6)**, 758–766.

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