The phrase "additional questionnaires" is correct and usable in written English.
It can be used when referring to extra forms or surveys that are being added to a set of existing ones for data collection or feedback purposes.
Example: "To gather more comprehensive data, we will be sending out additional questionnaires to our participants."
Alternatives: "extra surveys" or "supplementary forms".
In addition, no additional questionnaires are required for exploring reconceptualization and reprioritization.
In addition to completing a survey of CAM therapies, five interview schedules and eight additional questionnaires were administered.
The STUS also collected labor market and socio-demographic variables by means of additional questionnaires.4.4
The biology teachers also took part in either focus groups or additional questionnaires.
At the end of a 11- to 26- month follow-up period in which they completed four additional questionnaires, 160 respondents remained (85.1%).
Second, Researchers prepared additional questionnaires regarding their experiences about clothing culture of two Koreas and ideal fashion image in daily life.
These additional questionnaires include the information needed to construct an indicator of role overload plus the employment sector (private or public), which are lacking in the 2009 2010 STUS.
News broke last Friday that the IRS had targeted groups with the words "Tea Party" or "Patriot" in their name, forcing them to fill out additional questionnaires and provide more information in order to get approval for their tax-exempt status.
Additional questionnaires were mailed at 6 months, 12 months, and annually thereafter to obtain medical information, including data on height, body weight and physical activity.
We confirmed positive reports by telephone interview and additional questionnaires where possible, and restricted most analyses to first-second degree history, which may be more accurately reported.
Additional questionnaires were translated following international standards [ 53, 54].
