Researchers often use computers in their experiments to keep from influencing the participants and to keep themselves <u>blind</u> regarding the conditions to which the participants have been assigned.
<h3><u>Why is research blinding crucial?</u></h3>
Blinding is crucial to prevent bias (such as observer bias and demand characteristics) and guarantee the internal validity of a study.
Participants may alter their behavior in ways that affect the outcome that researchers are aiming to measure if they are aware of whether they are in a control or treatment group. If those providing the treatment are aware of the participants' assigned groups, they may treat them differently, which could either directly or indirectly affect the outcome.
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<u>Option 2: Freedom.</u>
The Nolan chart (1969) is a model that provides an alternative way to identify people's political view rather than the traditional way used (right wing or left wing). This map is based on two political views that people may support: economic freedom (the X-axis charts) and personal freedom (the Y-axis charts).
The chart is plotted across four quadrants on a Cartesian chart, the result is a diamond-shaped model: statist (low economic and personal freedom), conservative (low economic freedom and high personal freedom), liberal ( high economic freedom and low personal freedom), libertarian (high economic and personal freedom) and centrist (a mixed system balancing both economic and personal freedom with the need for some market regulation and personal sacrifice).