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2. ACT (test) - Wikipedia

   en.wikipedia.org/wiki/ACT_(test)

   The ACT ( / eɪ siː tiː /; originally an abbreviation of American College Testing) [ 10] is a standardized test used for college admissions in the United States. It is administered by ACT, a nonprofit organization of the same name. [ 10] The ACT test covers four academic skill areas: English, mathematics, reading, and scientific reasoning.

3. Intelligence quotient - Wikipedia

   en.wikipedia.org/wiki/Intelligence_quotient

   An intelligence quotient ( IQ) is a total score derived from a set of standardised tests or subtests designed to assess human intelligence. [ 1] The abbreviation "IQ" was coined by the psychologist William Stern for the German term Intelligenzquotient, his term for a scoring method for intelligence tests at University of Breslau he advocated in ...

4. Inter-rater reliability - Wikipedia

   en.wikipedia.org/wiki/Inter-rater_reliability

   Inter-rater reliability. In statistics, inter-rater reliability (also called by various similar names, such as inter-rater agreement, inter-rater concordance, inter-observer reliability, inter-coder reliability, and so on) is the degree of agreement among independent observers who rate, code, or assess the same phenomenon.

5. Standard score - Wikipedia

   en.wikipedia.org/wiki/Standard_score

   Standard score. In statistics, the standard score is the number of standard deviations by which the value of a raw score (i.e., an observed value or data point) is above or below the mean value of what is being observed or measured. Raw scores above the mean have positive standard scores, while those below the mean have negative standard scores.

6. 3 Guidelines for Calculator Use on ACT Math - AOL

   www.aol.com/news/3-guidelines-calculator-act...

   Unlike on the SAT, the use of a calculator is permitted throughout the entire math portion of the ACT. While it is best to avoid calculator use for certain problem types, test-takers should ...

7. Reliability (statistics) - Wikipedia

   en.wikipedia.org/wiki/Reliability_(statistics)

   Administering one form of the test to a group of individuals. At some later time, administering an alternate form of the same test to the same group of people. Correlating scores on form A with scores on form B. The correlation between scores on the two alternate forms is used to estimate the reliability of the test.

8. Expected value - Wikipedia

   en.wikipedia.org/wiki/Expected_value

   In probability theory, the expected value (also called expectation, expectancy, expectation operator, mathematical expectation, mean, expectation value, or first moment) is a generalization of the weighted average. Informally, the expected value is the arithmetic mean of the possible values a random variable can take, weighted by the ...

9. File:Historical Average ACT Scores.svg - Wikipedia

   en.wikipedia.org/wiki/File:Historical_Average...

   Historical Average ACT Scores.svg. English: A chart of the average (mean) ACT scores of high-school seniors from 1970 to the present. Date. 15 May 2014, 09:52:41. Source. Own work. Author. Erik Jacobsen ( erikthered.com ) Data through 1980 is based on a 10% sample of all test takers; data after 1980 is based on all test takers.