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In one study described in the text, one group of participants recorded their feelings of gratitude in a diary each day (Emmons & McCullough, 2003) . As compared to participants who did not count their blessings, the members of the diary group were:
Normal Population
A statistical population where the data points are distributed evenly around the mean, typically forming a bell-shaped curve known as a normal distribution.
Significance Level
The probability of rejecting the null hypothesis in a statistical test when it is actually true, often denoted by alpha and used to determine the threshold for statistical significance.
Test Statistic
A numerical value calculated from sample data that is used in a statistical test to evaluate the plausibility of a hypothesis about a population parameter.
November Low Temperature
The minimum temperature recorded or expected in the month of November, often used in climate and weather analysis.
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