control variables Flashcards
demand characteristics
-cue which convey to the participants the aim/purpose of study
what type of effects are there when relating to demand characteristics
- PLEASE YOU EFFECT- participant change their behaviour to benefit the research
- SCREW YOU EFFECT- participant sabotage is the result
why does demand characteristics occur
SOCIAL DESIRABILITY BIAS
(wanting to be seen in a desirable light)
-therefore they change their behaviour which leads to artificial behaviour and UNREALISTIC RESULTS, impacts VALIDITY AND RELIABILITY
participant reactivity meaning
how participants react to cues from the environment/research being conducted; participants are NOT passive
investigator effects meaning
-any effects of the researcher’s behaviour that impacts the researches outcome, this can be conscious or unconscious
what does investigate affects lead to
EXPERIMENTER BIAS
EG, age, gender, FACIAL EXPRESSIONS, TONE OF VOICE
randomisation meaning
use of chance when designing materials and order of conditions
-a way of controlling investigator effects and EVs, this reduces selection and investigator bias
standardisation meaning
using exactly the same procedures, environment, information and instructions for all participants
confounding variables meaning
extraneous variables that have not been controlled which affects the DV
situational variables meaning
features of the experimental situation that may affect the DV/could affect the participants behaviour