The Pointed End of a Bloodstain Always Faces

question 26

Multiple Choice

The pointed end of a bloodstain always faces:

• A) toward the position of the blood source.
• B) opposite its direction of travel.
• C) toward the direction from which the force came.
• D) in its direction of travel.
• E) none of the above.

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Definitions:

Measurement Error

The difference between the observed value and the true value of a variable, due to imprecision in measurement tools or techniques.

Reactivity

The phenomenon in which the presence of an observer or the awareness of being measured alters the behavior or responses of subjects.

Variability

The degree to which scores in a dataset differ from each other and from their average.

Reliability Coefficient

The reliability coefficient is a measure that assesses the consistency or stability of a test score or instrument over time.