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	<title>statistics &#8211; Reflectd &#8211; bringing psychology studies to life</title>
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		<title>4 Assumptions About the Mean Value in Statistics</title>
		<link>https://reflectd.co/2013/08/10/how-mean-is-the-mean/</link>
					<comments>https://reflectd.co/2013/08/10/how-mean-is-the-mean/#comments</comments>
		
		<dc:creator><![CDATA[Simon Moesgaard]]></dc:creator>
		<pubDate>Sat, 10 Aug 2013 19:22:00 +0000</pubDate>
				<category><![CDATA[The Scientific Method]]></category>
		<category><![CDATA[data analysis]]></category>
		<category><![CDATA[inferential statistics]]></category>
		<category><![CDATA[mean value]]></category>
		<category><![CDATA[statistics]]></category>
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					<description><![CDATA[Speelman &#38; McGann (2013) emphasize that over-reliance on means may contribute to misleading, and possibly erroneous, findings. The mean value represents the average performance of a group, as it is representative of the group&#8217;s data. In other words, the mean value represents a central tendency of the group, and a central tendency makes summarizing results easier. [&#8230;]]]></description>
		
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		<title>The Certainty Effect: Why We Fail at Calculating Probabilities</title>
		<link>https://reflectd.co/2013/08/10/the-certainty-effect-we-overweight-outcomes-that-are-considered-certain-relative-to-outcomes-that-are-merely-possible/</link>
					<comments>https://reflectd.co/2013/08/10/the-certainty-effect-we-overweight-outcomes-that-are-considered-certain-relative-to-outcomes-that-are-merely-possible/#respond</comments>
		
		<dc:creator><![CDATA[Simon Moesgaard]]></dc:creator>
		<pubDate>Sat, 10 Aug 2013 09:53:00 +0000</pubDate>
				<category><![CDATA[Cognitive Bias]]></category>
		<category><![CDATA[calculation]]></category>
		<category><![CDATA[cognitive bias]]></category>
		<category><![CDATA[cognitive error]]></category>
		<category><![CDATA[empirical]]></category>
		<category><![CDATA[experiment]]></category>
		<category><![CDATA[probability]]></category>
		<category><![CDATA[research]]></category>
		<category><![CDATA[statistics]]></category>
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					<description><![CDATA[&#8220;Not to be absolutely certain is, I think, one of the essential things in rationality” &#8211; B. Russell What is the certainty effect? According to Li &#38; Chapman (2009), the certainty effect happens when people overweight outcomes that are considered certain relative to outcomes that are merely possible. The effect was introduced by Kahneman and Tversky [&#8230;]]]></description>
		
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