The phrase "array of questionnaires" is correct and usable in written English.
It can be used when referring to a collection or variety of questionnaires designed for a specific purpose or study.
Example: "The research team distributed an array of questionnaires to gather diverse perspectives on the topic."
Alternatives: "collection of questionnaires" or "set of questionnaires".
Using an array of questionnaires and behavioural measures to test aggression, sexist attitudes and mental health issues, the study's authors found that playing the violent video game had no significant negative effects on any of these measures.
A vast array of questionnaires has been used to measure HRQoL in diabetes patients, contributing to the difficulty of selecting instruments for future research.
The majority of subjects in both arms completed a further array of questionnaires at 12 months after recruitment.
The clinical dataset consisted of responses on an array of questionnaires from 543 people who were potential participants in a cross-sectional study of the STarT Back Screening Tool [ 28].
Immediately prior to each injection, study participants completed an array of baseline questionnaires.
From the array of qualitative methods, both questionnaires and individual in-depth interviews would have been reasonable alternatives.
Both candidates made an array of commitments in a questionnaire fielded by the Wisconsin Fair Trade Coalition.
As there is no gold standard measure of disease control in IBD, we used a wide array of external measures to validate the questionnaire, including disease activity indices, generic and disease-specific QoL questionnaires and pragmatic clinical end points (global physician assessment and treatment outcome).
A wide array of clinical tests and psycho-behavioral questionnaires are included as part of the study.
At the time of recruitment, TOMBOLA subjects provided basic socio-demographic information and completed an array of quality-of-life and attitude questionnaires, comprising both context-specific instruments and the EQ-5D.
The "Information used" and "Information would have used" questionnaires listed an array of relevant biopsychosocial factors, but it was not an exhaustive list of all possible factors that could influence chronic pain treatment decisions.
