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Supplemental Information

Survey data (second round)

DOI: 10.7287/peerj.preprints.1602v2/supp-1

Additional Information

Competing Interests

The authors declare that they have no competing interests.

Author Contributions

Carlos Rivas Costa conceived and designed the experiments, performed the experiments, prepared figures and/or tables, reviewed drafts of the paper.

Manuel José Fernández Iglesias analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Luis Eulogio Anido Rifón conceived and designed the experiments, analyzed the data, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Miguel Gómez Carballa performed the experiments.

Sonia Valladares Rodríguez performed the experiments, analyzed the data.

Human Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Written consent was collected from all participants (cf. Files section). Although the pilot test performed in this research is exempted from an IRB approval requirement under Spanish regulations, we did received approval for the pilot from the Board of Directors of the Third Age Lecture Rooms of Galicia - ATEGAL, which provided the volunteers for the experience. Indeed, its collaboration was guaranteed because they found no ethical, organizational, technical or whatsoever issue that might prevent the involvement of ATEGAL users. We asked for a written statement from the ATEGAL board of directors in this sense (cf. attached document). ATEGAL (www.ategal.com) is an independent legally registered association providing continuing education to senior citizens in Galicia, Spain.

Data Deposition

The following information was supplied regarding data availability:

The raw data has been supplied as a supplementary file.

Funding

The authors received no funding for this work.


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