AIMS AND HYPOTHESIS Flashcards
Aim
an aim is a generally phrased statement intending what the researcher wants to invest
hypothesis
hypothesis is a prediction to the investigations outcome which makes a specific reference to independent and dependent variables.
operationalisation
carefully stated demonstrating how exactly they are to be measured example reaction time in miliseconds,
types of hypothesis
null and alternate hypothesis
alternate hypothesis further divided into one tailed or two tailed hypothesis
directional or one tailed hypothesis
states there is a difference in measurement of dependent variable as a result of manipulating the iv, and says the direction where the results would go.
non directional or two tailed hypothesis
states there is a difference in measurement of dependent variable as a result of manipulating iv, but doesnt say the direction where the results would go.
example of non directional hypothesis
there is a difference in number of words recalled by participants in green light as compared to participants recalling in blue light.
example of directional hypothesis
there is an increase in number of words recalled by participants recalling in green light as compared to participants recalling in blue light.
falisifiability
even a well established theory needs to be accessible to the possibility that new research will emerge which will contradict its basic principles.
the more a research is able to withstand the attempts to falsify it, the more confidence we tend to have in that research
demand characteristics
any cue the researcher or research situation may give which make the participants likely to be able to guess the aim of the investigation.
please u effect
participants may act in a way the researcher wants rhem to act
screw u effect
participants may intentionally underperform to sabotage the studys results.
investigator effects
where a researcher consciously or unconsciously acts in a way to support the particpants predictions.
randomisation
randomisation is use of chance to reduce the effects of bias from investigator effects.
standardisation
using the exact same formal procedures and instructions for every single participants involved in the research.