I developed the 16-item Work Locus of Control Scale, but it is specifically about the workplace context. Below is a link to the scale, the cite to a paper describing its development, and a meta-analysis that might be of interest.

http://shell.cas.usf.edu/~pspector/scalepage.html

Spector, P. E. (1988). Development of the Work Locus of Control Scale. Journal of Occupational Psychology, 61(4), 335-340. doi:http://dx.doi.org/10.1111/j.2044-8325.1988.tb00470.x

Wang, Q., Bowling, N. A., & Eschleman, K. J. (2010). A meta-analytic examination of work and general locus of control. Journal of Applied Psychology, 95(4), 761-768. doi:10.1037/a0017707

10.1037/a0017707.supp (Supplemental)

http://www.mccc.edu/~jenningh/Courses/documents/Rotter-locusofcontrolhandout.pdf

this scale has 29 questions but when you do your Cronbach alpha you can afford to delete items

There are several shorter LOC scales like Paul Spectord’s and like Paul’s they tend to be domain-specific (e.g. there are

Scales for economic locus of control, strategic management locus of control, health, mental health, politics, etc.).

This may be a bit late to help, but there's a dissertation online that summarized a couple of short-scale options and their psychometric properties:

https://www.ssoar.info/ssoar/bitstream/handle/document/37119/ssoar-2012-kovaleva-The_IE-4_Construction_and_Validation.pdf?sequence=1

The author mentions a 6-item scale version used in national surveys in Germany, and provides an English translation for these items.

Original paper (in German):

Jakoby, N., & Jacob, R. (1999). Messung von internen und externen Kontrollüberzeugungen in allgemeinen Bevölkerungsumfragen [Assessment of internal and external locus of control in a population survey]. ZUMANachrichten, 45(23), 61–71

https://www.ssoar.info/ssoar/handle/document/20812

Paul E. Spector that is exactly what I have been looking for, thank you. I have sent a pm.

I have used also the short version of the WLCS by @Paul E. Spector, for a research in 2016, on a target population unemployed youth

I wish to use this question set to test and understand the Locus of Control of students of my class.

Can I use it. Seek your permission to use your question set.

Regards

Hi,

Do anyone knows about the questionnaire measuring LOC having separate items for internal and external LOC?

What is the shortest form to measure LOC that is valid and reliable?

Hello Emily,

I found a 10 items questionnaire developed by NHS, UK on locus of control while researching for my own paper. you may find the link helpful as it provides information about many other LOC tools too.

https://positivepsychology.com/locus-of-control-test/#tests