Chapter 2 - Distribution of Scores

Question 1

Distribution

Answer 1

Conveys relative frequency with which values of a variable occur in a sample or population

Question 2

Raw frequency count

Answer 2

The number of scores in a sample or population having a particular value or falling in a given interval

Question 3

Relative frequencies

Answer 3

Proportion of scores in a sample or population having a particular value or falling in a given interval

Question 4

Cumulative frequency

Answer 4

Number of scores at or below a given value of a variable

Question 5

Cumulative proportion

Answer 5

P - proportion of scores at or below a given value of a variable

Question 6

p

Answer 6

Proportion of scores having a particular value

Question 7

Range

Answer 7

Maximum - minimum

Question 8

Score limits

Answer 8

The minimum and maximum whole values of the units of measurement that define the interval

Question 9

Real limits

Answer 9

The limits of all real numbers included in each variable

Question 10

Good features of grouped frequency tables

Answer 10

1. Interval width should be integer number of units of the variables
2. Interval width should be familiar
3. All lower score limits should be multiples of interval width
4. Real limits of highest score should include highest score, lowest contain lowest
5. All intervals should be continuous

Question 11

Width

Answer 11

Includes minimum and maximum values

Width 10=10-19