Locus of Control: Internality

Locus of Control: Internality is administered here as one of the International Personality Item Pool's single-construct scales: original public-domain items catalogued at ipip.ori.org (Goldberg, 1999) and keyed to one specific individual-differences construct, rather than belonging to a broad multi-factor inventory. This form presents 10 items rated on a 5-point scale; responses are summed in the keyed direction after any reverse-worded items are recoded.

The construct label and item membership follow the IPIP catalog directly. Because this exact public-domain item set is what is administered, the standings shown in the norms section are computed on this form itself (see the cited reference-sample note), not borrowed from any other instrument.

The notes below are reproduced from the platform's psychometrics register for this instrument — the same source-cited reliability, validity, and norms text that accompanies its downloadable report.

IPIP-based locus of control internality scale; reliability estimates for this exact 10-item public-domain operationalization are not available from a single published validation study.

Internal locus of control — the belief that outcomes are controlled by one's own actions — is associated with lower stress, better academic performance, and proactive coping (Rotter, 1966; Wallston et al., 1978).

Scores are expressed as percent-of-maximum on the 1–5 accuracy scale using Higher/Average/Lower bands. No published normative tables exist for this specific IPIP operationalization.

“Believe that my success depends on ability rather than luck.”

Illustrative only. During administration items are presented one screen-set at a time; response-key direction is never shown to respondents.

Item responses are summed within each scale (reverse-keyed items recoded first) and expressed as a population percentile against the cited reference sample, with a reliability-based confidence range where α is published.

Norms computed from the Eugene-Springfield Community Sample (ESCS) — Lewis R. Goldberg’s adult community panel from Eugene and Springfield, Oregon (Harvard Dataverse, doi:10.7910/DVN/UF52WY). This is a community sample and is NOT nationally representative. The mean, standard deviation, reference N and Cronbach’s α were computed directly from the raw IPIP item-level responses on THIS scale’s exact item set and reverse-keying (complete cases); reference N varies by scale and is shown with each scale below. The confidence range uses the standard error of measurement (SEM = SD·√(1−α)) from that computed α.

International Personality Item Pool (ipip.ori.org).