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The sum of the differences between the scores of a distribution and the mean of the scores is always zero?
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Is the median is always the point that is arithmetically exactly halfway between the highest and lowest scores of distribution?
false
What is the differences between 2 scores and 2 dozen?
A score is 20 and a dozen is 12. Two scores = 40 Two dozen = 24
How do you find the scores at the 60th percentile in a set of 200 scores?
You can't do this without knowing the distribution of scores.
In the standard normal distribution the means is always?
0 This may not make sense, but it takes a concept known as z-scores into account, which basically standardizes everything.
For a normal distribution what z-score value separates the lowest 10 percent of the scores from the rest of the distribution?
-1.28
Is the median is always the point that is arithmetically exactly halfway between the highest and lowest scores of distribution?
false
The mean of a distribution of scores is the?
The mean of a distribution of scores is the average.
What percentage of scores in a normal distribution would fall between z-scores of 1 and -2?
3
What is one advantage of transforming X values into z-scores?
True or False, One major advantage of transforming X values into z-scores is that the z-scores always form a normal distribution
What is one advantage of transforming X values into z scores?
The transformation always creates a normal shaped distribution.
What percentage of scores fall between 0 and -2 in a normal distribution?
2
What are the differences in test scores between normal schools and year round schools?
nothing.
What is the differences between 2 scores and 2 dozen?
A score is 20 and a dozen is 12. Two scores = 40 Two dozen = 24
How do you find the scores at the 60th percentile in a set of 200 scores?
You can't do this without knowing the distribution of scores.
What is test bias?
The differences in test scores, or predictions from those scores, between two or more subgroups of the population that are matched on the underlying construct being measured.
What is a factual statement about differences in IQ test scores in the US?
Research has shown that there are persistent differences in IQ test scores across different racial and ethnic groups in the US, with some groups consistently scoring higher or lower on average than others. However, it is important to note that while there may be differences in average scores, individual differences within each group are greater than differences between groups.
How would you characterize the distribution of scores in a normal distribution?
They are said to be Normally distributed.
