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  2. Historical rankings of presidents of the United States ...

    en.wikipedia.org/wiki/Historical_rankings_of...

    The 2011 survey, the first poll asking UK academics to rate American presidents, was conducted by the United States Presidency Centre (USPC) at the Institute for the Study of the Americas (located in the University of London's School of Advanced Study). This polled the opinion of British specialists in American history and politics to assess ...

  3. Kinsey scale - Wikipedia

    en.wikipedia.org/wiki/Kinsey_scale

    The Kinsey scale, also called the Heterosexual–Homosexual Rating Scale, [1] is used in research to describe a person's sexual orientation based on one's experience or response at a given time. The scale typically ranges from 0, meaning exclusively heterosexual, to a 6, meaning exclusively homosexual. In both the male and female volumes of the ...

  4. IP code - Wikipedia

    en.wikipedia.org/wiki/IP_Code

    The test specifies a spray nozzle that is fed with 80 °C (176 °F) water at 8–10 MPa (80–100 bar; 1,200–1,500 psi) and a flow rate of 14–16 litres per minute (3.7–4.2 US gal/min). The nozzle is held 10–15 cm from the tested device at angles of 0°, 30°, 60° and 90° for 30 seconds each.

  5. Rating of perceived exertion - Wikipedia

    en.wikipedia.org/wiki/Rating_of_perceived_exertion

    The Borg RPE scale is a numerical scale that ranges from 6 to 20, [8] where 6 means "no exertion at all" and 20 means "maximal exertion." When a measurement is taken, a number is chosen from the following scale by an individual that best describes their perceived level of exertion during physical activity. The scale was constructed to roughly ...

  6. Elo rating system - Wikipedia

    en.wikipedia.org/wiki/Elo_rating_system

    The Elo [a] rating system is a method for calculating the relative skill levels of players in zero-sum games such as chess. It is named after its creator Arpad Elo, a Hungarian-American physics professor. The Elo system was invented as an improved chess-rating system over the previously used Harkness system, [1] but is also used as a rating ...

  7. Bond credit rating - Wikipedia

    en.wikipedia.org/wiki/Bond_credit_rating

    The credit rating is a financial indicator to potential investors of debt securities such as bonds. These are assigned by credit rating agencies such as Moody's, Standard & Poor's, and Fitch, which publish code designations (such as AAA, B, CC) to express their assessment of the risk quality of a bond. Moody's assigns bond credit ratings of Aaa ...

  8. Grade inflation - Wikipedia

    en.wikipedia.org/wiki/Grade_inflation

    From 1988/89 to 2006/07 it was determined that there had been an 11.02% increase in undergraduate A grades, with the rate of increase being 0.656% per year. [45] In 100 level Math for the year 2006/07, the grade distribution of 11,042 assigned grades was: 31.9% A, 22.0% B, 18%C, 16.3% D, 11.8% F.

  9. Hamilton Rating Scale for Depression - Wikipedia

    en.wikipedia.org/wiki/Hamilton_Rating_Scale_for...

    The Hamilton Rating Scale for Depression ( HRSD ), [1] also called the Hamilton Depression Rating Scale ( HDRS ), sometimes also abbreviated as HAM-D, is a multiple-item questionnaire used to provide an indication of depression, and as a guide to evaluate recovery. [2] Max Hamilton originally published the scale in 1960 [3] and revised it in ...