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
5
3
Q
ANALYSING RESULTS
What does more spread out results show?
A
A greater variation
5
4
Q
ANALYSING RESULTS
Define standard deviation
,A
How far results deviate from the mean
5
5
Q
ANALYSING RESULTS
With standard deviation, what does a bigger number show?
A
More deviation
5
6
Q
VARIABLES
Define the IV
A
Change
5
7
Q
VARIABLES
Define the dependent variable
A
What you measure
5
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
5
12
Q
SAMPLING
Systematic
A
, Selecting every nth member of a target population
5
13
Q
SAMPLING
Stratified
A
Splitting the population into sub groups, samples which then consist of direct percentage
representation
5
14
Q
SAMPLING
Random strength and weakness
A
• Free from bias
• May not be representative
5
15
Q
SAMPLING
Opportunity strength and weakness
A
• Convenient, quick, easy
• Unrepresentative
5
16
Q
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
5
3
Q
ANALYSING RESULTS
What does more spread out results show?
A
A greater variation
5
4
Q
ANALYSING RESULTS
Define standard deviation
,A
How far results deviate from the mean
5
5
Q
ANALYSING RESULTS
With standard deviation, what does a bigger number show?
A
More deviation
5
6
Q
VARIABLES
Define the IV
A
Change
5
7
Q
VARIABLES
Define the dependent variable
A
What you measure
5
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
5
12
Q
SAMPLING
Systematic
A
, Selecting every nth member of a target population
5
13
Q
SAMPLING
Stratified
A
Splitting the population into sub groups, samples which then consist of direct percentage
representation
5
14
Q
SAMPLING
Random strength and weakness
A
• Free from bias
• May not be representative
5
15
Q
SAMPLING
Opportunity strength and weakness
A
• Convenient, quick, easy
• Unrepresentative
5
16
Q
