Examlex
The gold foil used by Ernest Rutherford in his investigations of atomic structure was approximately 1 m thick.Given that the radius of a gold atom is approximately 130 pm, how many atoms thick was the foil?
Intelligence
The capacity for learning, understanding, and applying knowledge and skills, and adapting to new situations.
Validity
The extent to which a test, measurement, or research study accurately measures what it is intended to measure.
Interrater Reliability
The degree of agreement among different raters or observers assessing the same phenomenon.
Split-half Reliability
The reliability of a test measured by dividing it into two parts and assessing how consistently they produce similar results.
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