research processes Flashcards
what are demand characteristics
a pp changing their behaviour to meet the aim of the investigation
what are investigator effects
the effect of the investigator behaviour on the research outcome
what is a single blind trial
when a participant doesnt know what condition they are in but researcher is aware
what is a double blind trial
where neither participant or researcher are aware of the research aims of an investigation
what is a control group
a group of pps who dont undergo a change in IV condition its used as a baseline behaviour measure
what is a confederate
an individual in a study who is a real participant but has been instructed how to behave by the research
why are random allocations so important
technique used to reduce participant variables so each participant has the same chance of being in any condition
what is randomisation
the used chance methods to control for the effects, when designing materials and deciding the order of conditions
what is standardisation
using the same standardised procedures and instructions for all pps in a study
what is a pilot study
a small scale study that runs to check procedures
why are pilot studies carried out
check procedures, instructions, materials, make changes
what are 2 advantages of pilot study
dont waste money and equipment
what is a target population
the group of people the researcher wishes to generalised their findings to
what is opportunity sampling
anyone in the vicinity who is willing and available
what is stratified sampling
all members of the target population have an equal chance of being selected
