A Math Test Developer Is Interested in Deriving an Index

question 60

Multiple Choice

A math test developer is interested in deriving an index of the difficulty of the average item for his math test.As his consultant on test development,you advise him that this index could be obtained by:

• A) identifying the item deemed to be average in difficulty and then deriving an item-difficulty index for that item.
• B) averaging the item-difficulty indices for all test items and then dividing by the total number of items on the test.
• C) dividing the total number of items on the test by the average item-difficulty index.
• D) raising that very same question to a more knowledgeable test development consultant.

---

Definitions:

Taxes

Mandatory financial charges or levies imposed by a government on individuals or businesses to fund public expenditure.

Proportional Tax

A tax system where the tax rate remains constant regardless of the amount subject to taxation, meaning all taxpayers pay the same percentage of their income.

Regressive Tax

A tax applied uniformly, taking a larger percentage of income from low-income earners compared to high-income earners.

Tax System

The set of laws and regulations that govern how taxes are collected from individuals, businesses, and other entities within a country or specific jurisdiction.