A Teacher Split a 50-Item Test into Odd and Even

question 51

Multiple Choice

A teacher split a 50-item test into odd and even items, scored each half, and then correlated odd scores with even scores.The correlation coefficient was .55.What is the estimated reliability for the full 50-item test?

• A) .80
• B) .71
• C) .69
• D) .65
• E) .60

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Definitions:

Automatic Variables

Variables that are automatically allocated on the stack and are local to the function block in which they are declared.

Static Variables

Variables that retain their value between multiple function calls, existing for the duration of a program's execution.

Register Variable

A type of variable that is stored in a CPU register instead of RAM to provide faster access to its value.

Address Operator

The address operator, represented by &, is used in languages like C and C++ to retrieve the memory address of a variable.