Examlex
The curving of light by air is greater when the light source is near the zenith.
Subjects' Behaviour
Examination of how research participants act or respond during experiments or studies.
Hypothesis
A proposed explanation for a phenomenon, based on previous observations, that can be tested through experimentation or observation.
Objective Manner
Acting or making decisions based on unbiased criteria and facts rather than personal feelings or opinions.
Double-blind Procedure
A research method in which neither the participants nor the experimenters know which participants belong to the control group and which belong to the experimental group.
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