Petechiae Formation

question 49

Multiple Choice

Petechiae formation

• A)is characteristic of sickle cell anemia.
• B)is most often prevented by a diet that is high in vitamin K.
• C)refers to pinpoint hemorrhages under the skin.
• D)is caused by a deficiency of reticulocytes.

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Definitions:

Random Assignment

A method in experimental design where participants are allocated to different groups or conditions by chance, minimizing biases.

Blind Observations

An experimental technique where the observers or experimenters do not know the specific conditions being applied to the subjects, to reduce bias.

Independent Variable

A variable that is manipulated or controlled in an experiment to test its effects on the dependent variable.

Violent Films

Movies that contain scenes of physical aggression, which can have varying effects on different audiences.