OPTQ is the name of an additional questionnaire on optimism, parental bonding and self-regulation of emotions among adult (18+) and adolescent (13-17) Lifelines participants. Implementation of this questionnaire in Lifelines was initiated by the department of developmental psychology of the University of Groningen.

The collected OPTQ data is currently under embargo. Please contact the Lifelines data managers at data@lifelines.nl for more information.

All invitations were sent in september 2023. Non-responders received a personal reminder after 3 weeks.
Invited participants could fill in the questionnaire until december 2023.

~3,800 adolescents were invited for OPTQ.
The response rate in this age group was 15% (n=~600).

~123,000 adults were invited for OPTQ
The response rate in this age group was 33% (n=~40,000).

The OPT questionnaire consisted of four instruments:

• The Life Orientation Test, revised version
• The Parental Bonsing Instrument
• The Cognitive Emotion Regulation Questionnaire
• The Responses to positive affect questionnaire