AQA A-level Research Method Flashcards (Psychology)

Research Methods
1
Q
ANALYSING RESULTS

Describe the three ways to measure central tendency


A
Mean, median and mode

5
2
Q
ANALYSING RESULTS

Describe the two measures of dispersion


A
Range and standard deviation

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3
Q
ANALYSING RESULTS

What does more spread out results show?


A
A greater variation

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4
Q
ANALYSING RESULTS

Define standard deviation

,A
How far results deviate from the mean

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5
Q
ANALYSING RESULTS

With standard deviation, what does a bigger number show?


A
More deviation

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6
Q
VARIABLES

Define the IV


A
Change

5
7
Q
VARIABLES

Define the dependent variable


A
What you measure

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8
Q
VARIABLES

Define the control variable

,A
What stays the same

5
9
Q
SAMPLING
Random


A
Every member of the population having an equal chance to be chosen

5
10
Q
SAMPLING

Opportunity


A
Using people who are available and convenient at the time

5
11
Q
SAMPLING
Volunteer


A
Pps who respond to an advertisement

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12
Q
SAMPLING
Systematic


A

, Selecting every nth member of a target population

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13
Q
SAMPLING
Stratified


A
Splitting the population into sub groups, samples which then consist of direct percentage

representation

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14
Q
SAMPLING

Random strength and weakness


A
• Free from bias

• May not be representative


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15
Q
SAMPLING

Opportunity strength and weakness


A
• Convenient, quick, easy

• Unrepresentative

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16
Q