Conflict between step-siblings

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Hello,
I am part of a group of Masters Students studying at Tilburg University in The Netherlands, and are currently conducting research regarding sibling conflict. In order to compile a thorough set of data surrounding the topic, we are looking for individuals who have adopted siblings, half siblings, and step siblings. We would be extremely grateful if you could aid us in this research and either fill out this survey yourself, or pass it along to any individuals that you believe would fit our criteria! It should not take more than 10 minutes, and your answers will remain anonymous.
Thank you for your time!
Daisy

We are also interested in the

We are also interested in the conflict between biologically related siblings, and you are more than welcome to fill out our survey as well! My reason for asking about siblings who are not fully biologically related was because so far almost all of our respondents have been full siblings, and we are looking to get some variety.
Thank you for your reply!