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I'm not a psychologist and would like to know how to get a psychological assessment to put into my website? Is there a public assessment with question data and scoring logic?

I'm sorry if the question is obvious to psychologists, and feel free to close the question.

I'm initially looking for assessment for students to help them choose a career path. I Googled "student career path quiz" and found numerous assessments, they're free as well, though I don't have the resources to create those assessments in my own website. So I guess my question is:

is there a public resource for psychological assessments, including questions, answers, scoring logic, and reporting?

To be clear: I want to put an psychological assessment in my website to assess students for choosing a career path (e.g. their personality model) one example is the IPIP Big-Five Factor Markers by OpenPsychometrics for the big five personality.

I'm coming from a programming background, so I'll code the assessment myself. But to do it, I need the list of questions, answers, scoring functions, and reporting standard. The ones that I found have questions and answers, but I couldn't find the scoring logic and how to generate reports for such questionnaires. I'm asking if there are public questionnaires that can I take to put into my own website.

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    $\begingroup$ Welcome to Psychology.SE. As it stands at this point in time, this question is not clear to me. Do you wish to be psychologically assessed yourself or do you wish to put another's assessment on your website? What assessment are you looking for? Assessment for addictive personality, aggression, depression, anxiety....? Also, what you have read on this subject, what made you ask this question, what problems you are having understanding your research? If you found nothing, what did you Google? This helps to provide an answer which will be more helpful. $\endgroup$ – Chris Rogers Apr 10 at 6:27
  • $\begingroup$ Hi Chris, thanks for the feedback. I've updated the questions, is it clearer now? $\endgroup$ – kkesley Apr 10 at 10:21
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    $\begingroup$ The question seems clearer now, however the edit now creates another problem to me. You have found assessments you wish to use, but don't have the programming resources to program the assessments into your website. Either you need to learn php, python, or whatever language you wish to use and program them in, pay for someone else to do so, or link to the assessments you have found. Either way this to me is not on-topic here. $\endgroup$ – Chris Rogers Apr 10 at 11:42
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    $\begingroup$ Hi Chris, I'm going to program the questionnaires myself. But to do it, I need the list of questions, answers, scoring functions, and reporting standard. The ones that I found have questions and answers, but I couldn't find the scoring logic and how to generate reports for such questionnaires $\endgroup$ – kkesley Apr 10 at 23:07
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There's nothing too deep about IPIP scoring. It just uses the standard Likert scale.

From https://ipip.ori.org/newScoringInstructions.htm

Converting IPIP Item Responses to Scale Scores

Here is how to score IPIP scales:

For + keyed items, the response "Very Inaccurate" is assigned a value of 1, "Moderately Inaccurate" a value of 2, "Neither Inaccurate nor Accurate" a 3, "Moderately Accurate" a 4, and "Very Accurate" a value of 5.

For - keyed items, the response "Very Inaccurate" is assigned a value of 5, "Moderately Inaccurate" a value of 4, "Neither Inaccurate nor Accurate" a 3, "Moderately Accurate" a 2, and "Very Accurate" a value of 1.

Once numbers are assigned for all of the items in the scale, just sum all the values to obtain a total scale score.

Easy, no? (If you are having problems, you might contact the IPIP consultant. [j5j@psu.edu])

And they do have a scoring key for the 50-question version meaning it links questions to Big Five factors; I'm not quoting that whole thing there, but here's a snippet:

Big-Five Factor Markers

Factor I (Surgency or Extraversion)

10-item scale (Alpha = .87)
+ keyed
    Am the life of the party.
    Feel comfortable around people.
    Start conversations.
    Talk to a lot of different people at parties.
    Don't mind being the center of attention.

– keyed
     Don't talk a lot.
     Keep in the background.
     Have little to say.
     Don't like to draw attention to myself.
     Am quiet around strangers.

Factor II (Agreeableness)

10-item scale (Alpha = .82)
+ keyed
    Am interested in people.
    Sympathize with others' feelings.
    Have a soft heart.
    Take time out for others.
    Feel others' emotions.
    Make people feel at ease.

– keyed
    Am not really interested in others.
    Insult people.
    Am not interested in other people's problems.
    Feel little concern for others.

And so on for the other three factors. Alpha refers to Cronbach alpha. It's not relevant for your purposes, but only for a reliability evaluation of the test-design itself. (The 100-question variant, also contained in that parge, obviously has higher Alpha.)

If you want a facet-level test, which further subdivides each of the Big Five factors, look at their 120-question NEO PI-R; it has a similar key. They also have a HEXACO key, which adds a sixth main factor (also faceted).

I'm not sure what you mean by "reporting standard". I suspect you want to relate the raw scores to population averages and standard deviations. To get such tables you need to read the original papers on which is based. Here's the one for HEXACO, for instance (this one is even broken down by gender):

enter image description here

The IPIP master key page has a list of references in which you can find the publication for the specific test you are interested in.

The initial IPIP test you mentioned/found (the 50-q one) is based on Goldberg's paper, but that one doesn't seem to contain either the IPIP-modified questions nor even population level means and standard deviations. (The population-based statistics are prone to change a bit if the questions are altered.) So if you pick a test like that you need to gather a sample of subjects first, have them complete the questionnaires, and then compute your own mean & variance distribution tables! Experimental psychology is (hard) work at times.

Luckily, there's a newer paper, on the mini-IPIP (just 20 q's), (also has key available) which also reports that population data for the older 50-q test.

enter image description here

N.B.: normally a percentile in the distribution would be reported to the user; see this math.SE question for the conversion from raw score to percentile in the normal distribution; basically use a Z-table.

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