8 Questions | Total Attempts: 390  Settings  • 1.
_______ is the score which occurs most frequently in the set.
• A.

The mode

• B.

The median

• C.

The mean

• 2.
Measures of dispersion are used to describe how ‘spread out’ or ‘scattered’ or ‘variable’ a set of scores is.
• A.

True

• B.

False

• 3.
Standard Deviation is a statistical measure of the extent to which individuals’ scores differ (‘deviate’) from the mean.
• A.

True

• B.

False

• 4.
Advantages of the standard deviation and variance includes: (Select three)
• A.

They take all the scores into account.

• B.

They take account of the exact value of each score and so are the most sensitive and trustworthy measures of dispersion

• C.

They are a little harder to calculate than the other measures.

• D.

They can be used to calculate the dispersion of scores from whole populations as well as just samples.

• 5.
One very important theoretical distinction in psychology is known as the ‘skewed distribution’.
• A.

True

• B.

False

• 6.
The ______ is simply the number of standard deviations that a particular score is away from the mean.
• A.

X-score

• B.

Y-score

• C.

Z-score

• 7.
The usual convention in psychology is that we reject H0 if it has a 10% or less chance of being correct.
• A.

True

• B.

False Back to top