Brittany, a softball player who plays catcher for the local college, has thrown out base stealers at a 42, 39, and 41 percent rate over her three years. Her performance could be considered which of the following?
A) Valid
B) Invalid
C) Reliable
D) Not reliable
Answer: C
Rationale: Reliability refers to how consistent and stable measurements are across multiple observations and points in time. In this example, Brittany's performance is very consistent over the three years.
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