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  2. Seasonal Pattern Assessment Questionnaire - Wikipedia

    en.wikipedia.org/wiki/Seasonal_Pattern...

    The Seasonal Pattern Assessment Questionnaire, or SPAQ, is a simple, self-administered screening test for Seasonal Affective Disorder, first developed in 1984.Though some aspects of its accuracy have been questioned since then, it is widely used today, especially by SAD researchers.

  3. Self-report inventory - Wikipedia

    en.wikipedia.org/wiki/Self-report_inventory

    A self-report inventory is a type of psychological test in which a person fills out a survey or questionnaire with or without the help of an investigator. Self-report inventories often ask direct questions about personal interests, values, symptoms, behaviors, and traits or personality types. Inventories are different from tests in that there ...

  4. Patient Health Questionnaire - Wikipedia

    en.wikipedia.org/wiki/Patient_Health_Questionnaire

    The Patient Health Questionnaire 2 item (PHQ-2) is an ultra-brief screening instrument containing the first two questions from the PHQ-9. [ 8 ] : 3 Two screening questions to assess the presence of a depressed mood and a loss of interest or pleasure in routine activities , and a positive response to either question indicates further testing is ...

  5. Self-report study - Wikipedia

    en.wikipedia.org/wiki/Self-report_study

    A self-report study is a type of survey, questionnaire, or poll in which respondents read the question and select a response by themselves without any outside interference. [1] A self-report is any method which involves asking a participant about their feelings, attitudes, beliefs and so on. Examples of self-reports are questionnaires and ...

  6. PHQ-9 - Wikipedia

    en.wikipedia.org/wiki/PHQ-9

    [1] [2] [3] The PHQ-9 is a component of the larger self-administered Patient Health Questionnaire (PHQ), but can be used as a stand-alone instrument. [4] The PHQ is part of Pfizer's larger suite of trademarked products, called the Primary Care Evaluation of Mental Disorders (PRIME-MD). [5] The PHQ-9 takes less than three minutes to complete.

  7. Response bias - Wikipedia

    en.wikipedia.org/wiki/Response_bias

    Self-administered questionnaires: This strategy involves isolating the participant before they begin answering the survey or questionnaire to hopefully remove any ...

  8. Questionnaire construction - Wikipedia

    en.wikipedia.org/wiki/Questionnaire_construction

    Questionnaires are frequently used in quantitative marketing research and social research. They are a valuable method of collecting a wide range of information from a large number of individuals, often referred to as respondents. What is often referred to as "adequate questionnaire construction" is critical to the success of a survey ...

  9. Questionnaire - Wikipedia

    en.wikipedia.org/wiki/Questionnaire

    A basic questionnaire in Thai. A questionnaire is a research instrument that consists of a set of questions (or other types of prompts) for the purpose of gathering information from respondents through survey or statistical study. A research questionnaire is typically a mix of close-ended questions and open-ended questions.