We use blind procedures ensure that neither the participants nor the data coders will know the hypothesis or treatment conditions of the study; we use blind procedures to ensure that the participants will not know the hypothesis or treatment conditions of the study.

Explanation: Double blind procedures are used in research situations where there is concern that knowledge of the hypothesis or treatment conditions might skew the results in some way. Therefore it is best that the person receiving the treatment being studied or answering the questions on a survey for example does not know the aims of the study per se, and in the double blind situation the person directly responsible for administering the questions or gathering data is also not aware so they cannot introduce any bias. In a single blind situation the aims of the study in terms of hypothesis for example are not know to the participant themselves, but the researcher directly gathering the data and interacting with the research subjects will know the hypothesis or reasons for treatment in the study.

We use ____ blind procedures ensure that neither the participants nor the data coders will know the hypothesis or treatment conditions of the study; we use ____ blind procedures to ensure that the participants will not know the hypothesis or treatment conditions of the study.

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We use blind procedures ensure that neither the participants nor the data coders will know the hypothesis or treatment conditions of the study; we use blind procedures to ensure that the participants will not know the hypothesis or treatment conditions of the study.