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Article History

Accepted: 29 November 2022

First Online: 8 December 2022

Declarations

:

: On the title page since there are author’s institution listed on it.

: Before data collection, we submitted an approval of this study to the institute office of Shandong Polytechnic College and the administrators agreed on the data collection after reviewing the proposal. During the data collection, the contact teachers of the study explained to the participants that they were granted confidence to withdraw or give up answering the questionnaire. Consent form was submitted to all the participants by four contact teachers. All participants agreed with this study.

: The authors claim that there is no any potential conflicts of interest.

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