Research Methods: Presentation of Data - Graphs & Distributions

Question 1

Name the three types of distributions

Answer 1

Positive Skewed, Negative Skewed and normal

Question 2

What are the three features of a normal distribution?

Answer 2

Curve is symmetrical
Curve extends outward but never touches zero
The mean, median and mode occupy the same mid-point on the curve

Question 3

If most of the data is concentrated on the left of the graph. Which type of distribution is this?

Answer 3

Positive Skewed

Question 4

Which type of distribution is to if the long tail of the graph is on the right of the peak of the data?

Answer 4

Positive Skewed

Question 5

A teacher set as hard test so most people got low marks. Which type of distribution is this?

Answer 5

Positive Skewed

Question 6

A teacher set an easy test so most students got high marks. Which type of distribution is this?

Answer 6

Negative Skewed

Question 7

Which type of distribution is it when most of the data is concentrated on the right of the graph?

Answer 7

Negative Skewed

Question 8

Which type of distribution is it if the long tail is on the left side of the peak of data?

Answer 8

Negative Skewed

Question 9

When drawing a distribution. Which three things do you plot?

Answer 9

Mean, Mode and Median

Question 10

When drawing a distribution curve, Which piece of data do you plot first?

Answer 10

Mode

Question 11

A researcher gave participants a questionnaire where the maximum score was 50. The data gained was Mode - 23
Mean -22.3
Median 22.6
Which type of distribution is this?

Answer 11

Normal distribution - as the mean, mode and median are almost the same

Question 12

A questionnaire was given to participants where the maximum score was 50. The data gained was:
Mode - 15
Mean - 25
Median -22
Which type of distribution is this?

Answer 12

Positive Skewed - because the mean is higher than the median/mode or to the right hand side of the distribution

Question 13

A researcher gave participants a questionnaire to complete where the maximum score was 50. The data gained was:
mode - 39
Mean - 33.5
Median - 35.6
Which type of distribution is this?

Answer 13

Negative skewed - because the mean is lower than the median/mode or to the left of the distribution

Question 14

Which type of distribution is this?

Answer 14

Positive Skew

Question 15

Which type of distribution is this?

Answer 15

Negative skew

Question 16

A teacher created a test and gained a negative skew in her grade distribution. What could be done to make this a normal distribution?

Answer 16

Make the test more difficult

Question 17

A teacher created a test that gained a positive skew in her grade distribution. What could be done to gain a normal distribution?

Answer 17

Make the test easier.

Question 18

Which three types of graphs do you need to know?

Answer 18

Bar chart
Histogram
Scatterplot/scattergram

Question 19

A student draws a bar chart where the two bars touch. Will they get the mark in the exam?

Answer 19

No

Question 20

What do you get three marks for in a graph question?

Answer 20

1 - plotting the correct graph
1 - for a title
1 - for labelling the x and y axis

Question 21

What should he title in a graph contain?

Answer 21

The operationalised IV and DV or operationalised co-variables

Question 22

A student draws a histogram. The bars are touching. Will they get the mark?

Answer 22

Yes

Question 23

This type of graph is for continuous data.

Answer 23

Histogram

Question 24

This type of graph is for discrete data.

Answer 24

Bar chart

Question 25

This type of graph shows the relationship between two variables.

Answer 25

Scatterplot/scattergram

Question 26

Which type of graph is this?

Answer 26

Histogram

Question 27

Which type of graph is this?

Answer 27

Bar Chart

Question 28

Which type of graph is this?

Answer 28

Bar chart

Question 29

Which type of graph is this?

Answer 29

Scatterplot/scattergram

Question 30

Which type of graph is this?

Answer 30

Scatterplot/Scattergram