Examlex
Using cash from newer investors to pay off older ones is known as a Kohlberg scheme.
Content Validity
The extent to which a test or measurement instrument covers the content that it is supposed to measure.
Split-Half Reliability
A measure of consistency where a test is divided into two parts and the scores on both halves are compared.
Correlation Coefficient
A statistical measure that calculates the strength and direction of the relationship between two variables, ranging from -1 to 1.
Middle Childhood
This developmental stage, from approximately 6 to 12 years of age, involves growing independence, developing friendships, and increasing academic and social skills.
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