Any political quiz that purports to judge "libertarian v. authoritarian" is not to be taken .. seriously or literally.
The contrast of libertarian is securitarian (for lack of a better more popular accurate term), not authoritarian, as libertarianism is about freedom whereas securitarianism is about security.
Both freedom and security are yin-yang forces that function best in dynamic balance.
Authoritarian implies both extreme means of providing security and dictatorial methods, neither of which are endemic to securitarianism.
To replace securitarian with authoritarian in the dualism is quite presumptuous, and implicates the likelihood that such "compass" tests were created by .. wait for it .. .. libertarians who wanted to make libertarianism look good, which hints at libertarian insecurity.
But libertarians would do well to think first before creating/cleaving to such compass tests that sport the libertarian v. authoritarian result scale, as, authoritarianism being what it truely is, such a dulaistic paradigm would imply that libertarianism is basically anarchistic, anarchism being the extreme of the means and methods of providing freedom, and I believe I recall quite a number of libertarians denying being anarchists.
Tests that have "libertarian" need to be "v. securitarian" .. because if such test creators/users insist upon "v. authoritarian" than they must rightly preface that with "anarchist".
Ususally the questions for this scale, no matter how it's termed, are somewhat-to-quite loaded, with such bias not really able to present a true and meaningful relevant picture of the test-taker's political philosophical position ..
.. And again, not finding any real accurate value in such a quiz, I don't take it .. seriously, yes, or otherwise.