The phrase "accuracy of questionnaires" is correct and usable in written English.
It can be used when discussing the reliability or precision of data collected through questionnaires in research or surveys.
Example: "The accuracy of questionnaires is crucial for obtaining valid results in our study on consumer behavior."
Alternatives: "reliability of surveys" or "precision of questionnaires."
The accuracy of questionnaires has been shown to be influenced by age and gender.
This review incorporated evidence on the test accuracy of questionnaires and handheld flow meters for COPD screening in primary care.
A systematic review identified 15 studies that assessed the accuracy of questionnaires of medical history compared with the medical records. 1 The proportion of illnesses reported in questionnaires ranged from 30% to 53% of those listed in the medical record.
To enhance the accuracy of questionnaires, scoring systems to identify asthma in large population surveys using a combination of predictor variables collected by questionnaires have been developed [ 14, 15].
We assessed the accuracy of questionnaire reports of cat and dog ownership and presence of cockroaches in predicting measured allergen concentrations in house dust.
The accuracy of questionnaire items to identify COPD has previously been criticized [ 20] and they will never replace spirometry to make diagnosis [ 21].
Sensitivity, specificity, positive likelihood ratio (LR+), positive predictive values (PPVs), and negative predictive values (NPVs) were calculated to define diagnostic accuracy of questionnaire answers.
However, relative to other sources of uncertainty that arise in the collection and handling of carpet dust samples, and the accuracy of questionnaire information, additional uncertainty induced by random DLs for type II and III missing values is likely small.
Recently, the accuracy of questionnaire items in defining COPD was assessed with the main purpose of developing a screening tool for primary care [ 11, 22]; in these studies, a set of mixed questions on symptoms and personal information achieved good sensitivity and reasonable specificity.
