6. the factor manipulated by researchers in an investigation
operationalisation of variables
extraneous variables
independent variable
dependent variable
7. a research method that uses random allocation of participants and the manipulation of variables to determine cause and effect relationships
bias
experimental method
independent variable
causality
dependent variable
8. researchers may be unconsciously biased to 'finding' or interpreting participants' behaviour in a way that supports their hypothesis, so they find what they want to find or expect to find
researcher bias
physical characteristics
personal characteristics
dependent variables
9. experimental design where each participant performs just one condition of an experiment
double-blind procedure
independent groups design
single-blind procedure
researcher bias
10. a method of controlling investigator effects and demand characteristics where both researchers and participants are unaware of which experimental condition participants are in
double-blind procedure
investigator effects
single-blind procedure
personal characteristics
11. personal aspects of researchers can affect participants' behaviour, like their accent or tone of voice
researcher bias
personal characteristics
physical characteristics
extraneous variables
12. the establishment of cause and effect relationships through the use of controlled conditions in research settings
situational variables
bias
causality
experimental method
13. physical aspects of researchers can affect participants' behaviour
independent groups design
physical characteristics
researcher bias
personal characteristics
14. variables, other than the IV, that may affect the measurement of the DV
confounding variables
experimenter variables
extraneous variables
operationalisation of variables
15. where characteristics of a researcher influence participants' responses in an investigation
demand characteristics
investigator effects
double-blind procedure
causality
16. the process of defining variables into measurable factors
operationalisation of variables
dependent variables
independent variable
bias
17. variables concerned with the experimental setting
situational variables
confounding variables
participant variables
experimenter variables
18. the degree to which participants in a sample have been selected without prejudice
bias
operationalisation of variables
participant variables
causality
experimental method
19. uncontrolled extraneous variables that negatively affect results