Extraneous
An <em>extraneous variable</em> is a variable in an experiment that you are not intentionally studying. These variables usually provide undesired affects on the experiment.
In this example, the independent variable is whether a sentence is humorous or not, and the dependent variable is the memory performance score. However, because the humorous sentences are only given to males, and the non-humorous sentences are only given to females, gender becomes an extraneous variable as you are not intentionally testing gender's relation to the dependent variable, but it is still affecting the experiment.
The aim of the Perestroika in the Soviet Union was to make the Socialism system there more efficient, so that the goods produced are actually the ones needed (but it ended up changing the system altogether)<span />
a: emperor ...............
The controversy that surrounded the Great Zimbabwe Ruins until the early 1900s was to establish that African society did not build Great Zimbabwe and it is done by some other migrant society.
There were lots of political pressure put to deny the African people's role in the Great Zimbabwe ruins.
Explanation
Great Zimbabwe was an ancient city that was spread around 1,779 acres containing huge stone walls of height 11 m.
They were built around 11th to 15th century.
Building such a huge city with stones by African people were unbelievable to archaeologists and other historians.
Some believed that an alien civilization had built it while some referred it to as a biblical site where Solomon had kept 'Ophir' gold.
<span>The diathesis-stress model predicts that individuals develop mental disorders because they experience stress and they have a predisposition that made them more vulnerable to the condition. Thus, the model would say that the individual who developed an affective disorder was genetically predisposed in some way that made them less resilient to the stressor experienced and more likely to develop a disorder.</span>
