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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Monthly Variations in Testosterone Levels: Results from 8,367 Middle-Aged Men
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<blockquote data-quote="sammmy" data-source="post: 193516" data-attributes="member: 38594"><p>The second study coincides with my experience and my indirect observations: sexual activity seems to peak during the hot summer and substantially decreases during the cold winter.</p><p></p><p>The second study mentions that the seasonal pattern was evident on the individual plots of 12 of the 27 men, with the remaining men showing no pattern. That to me is the biggest proof than any fancy "regression models", although it remains unclear why the remaining 15 men did not show seasonal pattern.</p><p></p><p>The statistical methods in the first (Korean) study are not clear but if they had different random participants each month and plotted the mean values each month, they are averaging over large individual differences (independent measures statistical design), with is incorrect. Each individual/participant should be compared to his own levels i.e. "individual plot". This is the so called 'repeated measures statistical design'.</p></blockquote><p></p>
[QUOTE="sammmy, post: 193516, member: 38594"] The second study coincides with my experience and my indirect observations: sexual activity seems to peak during the hot summer and substantially decreases during the cold winter. The second study mentions that the seasonal pattern was evident on the individual plots of 12 of the 27 men, with the remaining men showing no pattern. That to me is the biggest proof than any fancy "regression models", although it remains unclear why the remaining 15 men did not show seasonal pattern. The statistical methods in the first (Korean) study are not clear but if they had different random participants each month and plotted the mean values each month, they are averaging over large individual differences (independent measures statistical design), with is incorrect. Each individual/participant should be compared to his own levels i.e. "individual plot". This is the so called 'repeated measures statistical design'. [/QUOTE]
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Testosterone Replacement, Low T, HCG, & Beyond
Testosterone Basics & Questions
Monthly Variations in Testosterone Levels: Results from 8,367 Middle-Aged Men
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