ISTP or ISFP Test

Based on the Work of Myers, Briggs, and Jung

So you've taken the basic Personality Type Test and you're still not sure of your type. But you've had a peek at the system and you think that you're probably ISTP or ISFP. Don't worry. This happens to a lot of people when they're first getting into psychological type. Learning about type is a process of self-discovery and no test can replace your own self-assessment. But this test can lend you a hand in finding out whether you are ISTP or ISFP.

Question 1 of 17

Which is closer to your attitude towards cultural icons such as Gandhi, Rosa Parks, and Martin Luther King?

I am protective of the people that I cherish and admire - even if I don't know them personally, I don't like to hear them harshly criticized. When I hear these people being romanticized, there's a part of me that wants to dig through the dirt on them and expose how they're not as saint-like as people make them out to be.

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IDR Labs ISTP or ISFP Test is the property of IDR Labs International.

Ours is one of the few free tests that is subjected to statistical controls and validation. Even so, please keep in mind that tests are merely indicators - a first peek at the system to get you started.

Myers-Briggs Type Indicator and MBTI are trademarks or registered trademarks of the Myers & Briggs Foundation, in the United States and other countries. The MBTI^® instrument is published by The Myers-Briggs Company. The Jung Type Indicator is the property of Psytech International.

Personality tests, whether they are professional or "official" tests like the MBTI^® (Myers-Briggs Type Indicator^®) test, the Jung Type Indicator, or free online personality tests like this one, are indicators to help you find your personality type. No test ever devised can designate your personality type with complete accuracy or reliability, and no personality type test can replace familiarizing yourself with the works of Myers, Briggs, von Franz, van deer Hoop, and Jung in depth.

As the publishers of this online free personality test that allows you to discover your psychological type in the typology of Jung, Myers, Briggs, von Franz, van deer Hoop, we have endeavored to make this free online personality type test as reliable, accurate, and complete as possible.

Like the "official" tests based on the Jungian typology, and other professionally-developed, accurate instruments, our free online test is subjected to statistical controls and validation in order to make the results as accurate as possible.

We primarily draw on the psychology of personality types presented in C.G. Jung's Psychological Types as well the psychological insights into personality type tests as presented in the work of Isabel Briggs Myers, co-creator of the MBTI^® test, as set forth in her work Gifts Differing. Furthermore, the works of van der Hoop, Conscious Orientation and Character and the Unconscious, were also influential in the making of this test.

This test follows established theory. Our test follows the written theory of Jung, Myers, von Franz, and van der Hoop on the topic of personality type, rather than some slapdash approximation of Jung's theory.

Our is one of the free online tests which also draws on the works of J.H. van der Hoop and has endeavored to provide an accurate psychological assessment that stays as close to the official and authorized works of van der Hoop as possible.

The authors of this free online personality test are certified in the use of multiple different personality tests and have worked professionally with typology and personality testing. Prior to using our free online personality test, please note that while the four-letter type code provided is compatible with the type codes provided by official typology tests and training material, this test should not be confused with official trademarked tests like the Myers-Briggs Type Indicator^®, the Grey-Wheelwright Type Indicator, the Jung Type Indicator, or similar. The results of our free online personality test are provided "as-is", for free, and should not be construed as providing professional or certified advice of any kind. For more on our online personality test, please consult our Terms of Service.

C.G. Jung

Why Use This Test?

1. Free. This free online personality test is delivered to you free of charge and will allow you to clarify your four-letter type code according to the typology of Jung, Myers, Briggs, von Franz, and van der Hoop.

2. First of its kind. Our free personality test has been developed to help you determine whether you are ISTP or ISFP and to our knowledge, it is the first of its kind.

3. Statistical controls. Test scores are logged into an anonymized database. Statistical analysis of the test is conducted to ensure maximum accuracy and validity of the test scores.

4. Made by professionals. The authors of this free online personality test are certified in the use of different personality tests and have worked professionally with typology and personality testing.