If you are starting your project with a specific assessment in mind you will want to start by searching for it in the Mental Measurements Yearbook. This database has only tools that are “commercially available”, which means you would have to pay for the full test. So if you search your assessment and it shows up in the database, you will not find it online for free.
If you are starting this topic with a specific topic, you will want to start your search with the PsycINFO database. This will mostly work for a counseling or psychology topic, but it may work for another subject, such as Education. Let us say your topic is “Cyberbullying”.
If you are having difficulty finding tests that are found online, you can try to search ProQuest for specific measurements that have been used in theses or dissertations in the past, because they will have the questions in the appendix. You can then search for the tests or questions in Google or Google Scholar to see if they are available publicly. To start, you will want to go to the ProQuest Dissertations and Theses database.
If you find the test in a dissertation, since you have all of the questions, you could try to just "create" a copy of the instrument yourself where you provide a Likert scale. But should it be a 4 or 5 point Likert scale the words "Strongly disagree" "disagree" "agree" or "strongly agree" or is it "Like me" or "Very true of me," etc. should be the same as the test. So it makes it hard to reproduce the scale.
A problem with you recreating a certain scale from the questions is that some of them I'm sure are meant to be reverse scored. So the questions that point to a positive attachment would have a higher number on a scale of 1 to 4 or 1 to 5 so that the higher the number the greater the attachment. When you reverse score an item, if that place would normally be a 5 then for THAT QUESTION you give the opposite or a 1. For instance, positively scored questions might be something like "I feel like I bond well with my child" but a negatively scored question might be "My child and I don't get along well." On a four point scale, if it would normally be a 4 the reverse score would be a 1. You can't just give the same points to all questions or you won't have a correct interpretation. So you need the questions, the Likert scale and descriptions, and the scoring instructions.
Feel free to contact us at firstname.lastname@example.org or (434)582-2221 with any further questions.