Flashcards in Chapter 5 Deck (65)

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1

## What are the two main purposes of statistical procedures?

###
1) Describing the results of a study.

2) Helping us understand the meaning of those results

2

## Without statistics, what would we gain from studies?

### Very little.

3

## Are statistical procedures and research design closely related?

### Yes

4

## Will two individuals respond in exactly the same manner?

### No two individuals will respond in exactly the same manner and statistical procedures depend on variability between participants.

5

## What does the variation between each person show?

### Individual differences

6

## What descriptive and inferential statistics provide?

### Organisation.

7

## What do descriptive statistics do?

### Descriptive statistics summarise, simplify and describe such large sets of measurements.

8

## What do inferential statistics do?

### Inferential statistics help us interept what the data means.

9

## What does statistcial simplication involve?

###
Stastical simplication involves computing frequencies.

10

## What is frequency?

### Frequency is the number of participants that fall into each category.

11

## What do we arrange frequencies into?

### Frequency distributions.

12

## What do frequency distributions show>

### Frequency distributions show the frequency in each category.

13

## What is cross tabulation useful for?

### Cross tabulation is a useful way to categorise participants based on more them one variable at the same time.

14

## What can cross tabulation help with?

###
Cross tabulation can help the researcher see relationships between nominal measures.

15

## What is the easiest way to represent score data?

### The simplest way to organise a set of score data is to create a frequency distribution.

16

## What does group frequency distribution do?

### A group frequency distribution reduces the table to a more manageable size by grouping the scores into intervals.

17

## When is group frequency distribution required?

### A grouped frequency distribution is required with a continuous variable in which there are treoretically infinite number of possible scores.

18

## What can graphs do?

###
Graphs can clarify a data set by presenting the data visually.

19

## What do most people find easier to understand than statistical procedures?

### No

20

## What are excellent supplements to statistical analyses?

### Graphs and tables.

21

## How are the two ways we can represent frequency of grouped frequency distribution?

### Historgram and frequency polygon.

22

## What do both histograms and frequency polygon do?

### Represent data on a two-dimensional graph.

23

## What is the x axis also called?

### The abscissa

24

## What does the x axis represent?

### This represents the range of scores of the variable.

25

## What is the y axis also called?

### The ordinate.

26

## What does the y axis represent?

### The Y axis represents the frequency of the score.

27

## What is the common shape for systematic distribution?

###
Bell shaped curve.

28

## What is a bell shaped curve?

### This is where most of the participants are near the middle of the distributions and the right and left sides are mirror images.

29

## What are skewed dostributions?

### Skewed distributions are where the score piles up on each end of the distrubutions.

30