Research Methods- Analysing&interpreting Data✅ Flashcards Preview

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Flashcards in Research Methods- Analysing&interpreting Data✅ Deck (24):
1

Types of data

Quantitative
Qualitative
Primary
Secondary

2

Qualitative data definition, advantages and disadvantages

Focuses on words
+) more detailed information
-) more difficult for analyse

3

Quantitative data definition, advantages and disadvantages

Focuses on words
+) easier to analyse
-) not as rich, and meaningful

4

Primary data

Data that is collected by the
Researcher themselves

5

Secondary data

Using someone else's findings

6

Histograms

Bars joined together
Bars have to be equal width
Used for continuous data
No intervals are missed
All categories can be represented

7

Bar charts

Bars aren't joined together
Used when comparing groups of data (not continuous)
Can be used to represent single statistics
Multiple data sets can be shown and compared

8

Scattergrams

To show correlation/relationship
Line of best fit indicates relationship
Used to show type and strength of correlation

9

Measures of central tendency

Mean median and mode

10

One way of calculating the measure of dispersion within a data set

Calculating the range

11

Range

Subtracting the lowest score from the highest

12

Standard deviation

The measure of the spread of scores around the mean

13

What three thing must you do in the sign test

Be looking for a difference
Have used repeated measures experimental design
Have data that is organised into categories

14

The accepted level of probability is

0.05 meaning that the researcher will accept the hypothesis

15

Your calculated critical value needs to be

Equal to or less than the table value to be deemed as significant

16

If the result is significant it means

It matches your hypothesis and is effective

17

Step one of the sign test

Covert your data to nominal data- do this by allocating your data one of the following signs +,-,=

18

Step 2 of the sign test

Total up the +'s
Total up the -'s
Disregard the ='s and adjust the number of participants according to the number of equals

19

Step 3 of the sign test

Identify the number of the less frequent sign, this is the S value

20

Step 4 of the sign test

Compare your S value against the critical value table. To do this you need to know if the hypothesis is one tailed or two tailed and the number of participants (N). You must also remember the accepted level of probability 0.05

21

Peer review

When psychological work is assessed by specialists in the same field to ensure any research intended for publication is or high quality

22

What does peer review involve

The written part of an investigation is scrutinised by a small group (normally 2 or 3) of experts. These experts should be unknown to the researcher and should be objective

23

Aims of peer review

To allocate funding
To validate quality and relevance
To suggest improvements or amendments

24

Criticisms of peer review

Should the experts be unknown
Publication bias