Which Wave Indicates That an Electrical Impulse Originated in the Sinoatrial

question 7

Multiple Choice

Which wave indicates that an electrical impulse originated in the sinoatrial node?

• A)An inverted T wave
• B)An upright T wave
• C)A negative P wave before a QRS complex
• D)A positive P wave before a QRS complex

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Definitions:

Experimenter Bias

A type of bias that occurs when the experimenter's expectations influence the outcome of a research study.

Statistically Significant

Statistically significant refers to a result that is unlikely to have occurred by chance alone, according to a predetermined threshold of probability, indicating a likely genuine effect.

Double-blind Study

A double-blind study is a research design in which neither the participants nor the experimenters know who is receiving a particular treatment, to eliminate bias.

Experimental Group

The group in an experiment that receives the variable being tested, as opposed to the control group.