Examples of difference in the following topics:
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- What difference does key make?
- The music may look quite different, but the only difference when you listen is that one sounds higher than the other.
- So why bother with different keys at all?
- Even now, there are subtle differences between the sound of a piece in one key or another, mostly because of differences in the timbre of various notes on the instruments or voices involved.
- The same tune looks very different when written in two different major keys.
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- The just-noticeable difference (JND), also known as the difference limen or differential threshold, is the smallest detectable difference between a starting and secondary level of sensory stimulus.
- In other words, it is the difference in the level of the stimulus needed for a person to recognize that a change has occurred.
- It's possible to turn the volume up only slightly, making the difference in volume undetectable.
- The difference threshold is the amount of stimulus change needed to recognize that a change has occurred.
- If someone changes the volume of a speaker, the difference threshold is the amount it has to be changed in order for listeners to notice a difference.
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- The matched pairs have differences arising either from a population that is normal, or because the number of differences is sufficiently large so the distribution of the sample mean of differences is approximately normal.
- The differences are the data.
- The differences have a normal distribution .
- Let μd be the population mean for the differences.
- We use the subscript d to denote "differences".
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- The mean of the distribution of differences between sample means is equal to the difference between population means.
- Compute the difference between means M1−M2.
- The distribution of the differences between means is the sampling distribution of the difference between means.
- which says that the mean of the distribution of differences between sample means is equal to the difference between population means.
- Discover that the mean of the distribution of differences between sample means is equal to the difference between population means
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- Different classes have different levels of access to treatment and encounter different mental health stressors.
- Members of different classes encounter different stressors—lower class people likely face more financial stress as it pertains to day-to-day sustenance and well-being, while upper class people might experience stress from the intense social pressures associated with elite circles.
- Mental health is a socially constructed and socially defined concept; different societies, groups, cultures, institutions, and professions have very different ways of conceptualizing its nature and causes, determining what is mentally healthy, and deciding what interventions are appropriate.
- Members of different social classes often hold different views on mental health.
- Similarly, different social classes have different levels of access to mental health interventions and to information about mental health.
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- We computed one possible difference under the independence model in Exercise 1.50, which represents one difference due to chance.
- Note that the distribution of these simulated differences is centered around 0.
- We simulated these differences assuming that the independence model was true, and under this condition, we expect the difference to be zero with some random fluctuation.
- We would generally be surprised to see a difference of exactly 0: sometimes, just by chance, the difference is higher than 0, and other times it is lower than zero.
- Two of the 100 simulations had a difference of at least 29.2%, the difference observed in the study.
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- For each subject a difference score between their initial weight and final weight could be computed.
- A t test of whether the mean difference score differs significantly from 0 could then be computed.
- The mean difference score will equal the difference between the mean weight losses of the two groups (61.3 - 11.2 = 50.1).