Examlex
Explain the difference between assignment bias and selection bias.Which one is a threat to internal validity and which is a threat to external validity?
Biceps Brachii
A muscle of the upper arm that is involved in the flexion of the forearm and supination of the forearm.
Serratus Anterior
The serratus anterior is a muscle that originates on the surface of the upper eight or nine ribs and inserts on the medial border of the scapula, playing a key role in the movement of the shoulder.
Linea Alba
The linea alba is a fibrous structure that runs down the midline of the abdomen, forming the seam that joins the left and right abdominal muscles.
Serratus Anterior
A muscle located on the side of the thorax, which plays a crucial role in the movement of the shoulder blade.
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