When Using Agency Records as a Data Source, the Researcher

question 36

Short Answer

When using agency records as a data source, the researcher must always keep changes in operational definitions and changes in _______________ in mind because of their potential impact upon validity and reliability.

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Definitions:

M Line

Line in the center of the H zone made of delicate filaments that holds the myosin myofilaments in place in the sarcomere of muscle fibers.

Myosin Head

The globular part of the myosin protein that binds to actin filaments in muscle cells during contraction.

Troponin

A protein complex involved in the regulation of skeletal and cardiac muscle contraction, which binds to calcium ions causing a change that allows muscle contraction.

ATPase Activity

The enzymatic activity involved in hydrolyzing ATP (adenosine triphosphate) to release energy.