L8

Question 1

Reliability

Answer 1

Consistency of the research

Question 2

External reliability

Answer 2

Test retest- if both tests gain similar results means external reliability

Question 3

Internal reliability

Answer 3

Split half technique- questionnaire split half and similar scores mean internal reliability

Question 4

Ecological validity

Answer 4

Findings of a study can be generalised to other settings

Question 5

Participant validity

Answer 5

Results from participant can be generalised to target population

Question 6

Temporal validity

Answer 6

Results can be generalised in todays contemporary society

Question 7

Interval validity

Answer 7

Outcome is direct manipulation of IV and not affected by EV

Question 8

Participant variables

Answer 8

Characteristics that affect DV e.g. age/gender
Matched pairs and repeated measures avoid this

Question 9

Situational variables

Answer 9

Factors in the environment that affect DV
Resolved via standardisation

Question 10

Experimenter variables

Answer 10

Factors with the experimenter that affect DV
Standardised instructions can avoid this

Question 11

Investigator effects

Answer 11

Investigator inadvertently influence results (gender, age, ethnicity)
Observer bias and interviewer effects are a type of investigator effect
Double blind techniques avoid this

Question 12

Double blind technique

Answer 12

Participants nor investigator know the aim of the study

Question 13

Single blind technique

Answer 13

Participants don’t know the aim of the study