A well-defined title for the main study.

The use of sophisticated statistical methods.

The researchers’ experience of participating in the study.

Recruiting the required number of participants according to the defined inclusion criteria within the planned timeframe.

Efficient use of the study budget.

To test the full study protocol on a small sample and identify areas for improvement.

To conduct a theoretical analysis based solely on a literature review without a preliminary study.

To evaluate only the ethical procedures and participant safety during the study.

To assess funding availability and precisely calculate the sample size for the main study.

To validate the research hypothesis using rigorous statistical methods for data analysis.

It allows respondents to choose between two options: "Yes" or "No."

It defines entirely subjective response options.

It allows respondents to express their opinions by selecting only positive answers.

It provides predefined response options without a graded scale.

It rates responses on a scale from "strongly agree" to "strongly disagree."

A questionnaire that consists only of open-ended questions of varying lengths.

A questionnaire with short, clear questions and interactive rating scales.

A questionnaire that includes various question types, including open-ended ones.

A questionnaire that requires all questions to be answered without the option to skip any.

A paper-based questionnaire without the option for electronic completion.

Reviewing the procedures for respondent selection.

Analyzing open-ended questions.

Assessing the length and complexity of the questionnaire.

Expert panel evaluation.

Calculating Cronbach’s alpha coefficient.

Using leading questions to guide respondents toward specific responses.

Using multiple-choice questions without specifying a time frame.

Including open-ended personal questions that encourage respondents to provide preferred answers.

Allowing respondents to interpret and answer questions freely without prior instructions.

Using neutral wording and clearly defined time frames.

Random selection of respondents to ensure representativeness.

Standardized response options that reduce ambiguity.

Pilot testing of the questionnaire before primary data collection.

Leading questions that encourage respondents to choose specific answers.

Neutrally worded questions with no leading phrasing.

The ability of the questionnaire to be adapted for different patient groups.

The variety of responses available in open-ended questions.

The questions' clarity ensures that all patients interpret them similarly.

The ease of use of the questionnaire reduces the time required for completion.

The repeatability and consistency of results when the questionnaire is completed multiple times.

It measures precisely the aspect of health it is designed to assess.

It determines the repeatability (stability) of the results when the questionnaire is completed multiple times.

It collects data that can be interpreted in multiple ways.

It defines the nature of the questions, such as their length and simplicity.

It ensures that all respondents complete the questionnaire in the same way.