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Psychology Year 12 > Research Methods > Flashcards

Flashcards in Research Methods Deck (12):
1

Experimenter must ensure EV’s are minimised by…

o Considering how sample obtained and how participants allocated
o Considering experimental design used
o Considering how to minimise effect of participant and experimenter expectations

2

Confounding/uncontrolled variable:

when EV has confounding effect on the results

3

Reasons extraneous and confounding variables may occur

 Artificiality

 Demand characteristics

 Non-standardised procedures:

4

Single-blind procedure:

when participants do not know whether they have been assigned to control or experimental group

5

Double-blind procedure

- Single-blind procedure may help to balance impact of participants’ expectations on results
o Experimenters still know which group is which in single-blind procedure
o Experimenter’s behaviour towards groups (body language, verbal cues and preferential treatment) may influence results of study

6

Subjective data

data collected through observations of behaviour, or information based on participants’ self-reports

7

Objective data

data collected under controlled conditions and are easily measured and compared with other data

8

Qualitative data:

that describe changes in quality of behaviour and often expressed in words

9

Quantitative data

takes numerical or categorical form and can be statistically analysed and readily measured and compared with other data

10

Variability

data by looking at how data are spread

11

Standard deviation

explores variability of data by looking at how far each individual piece of data differs from the mean

12

Participants’ rights

 Confidentiality
 Voluntary participation:
 Withdrawal rights:
 Informed consent:
 Deception
 Debriefing