topic 7 + 8 research methods Flashcards
what is an aim?
a general expression of what the researcher intends to investigate
what are hypotheses?
a testable statement that predicts the results in a study. must include operationalised variables (IV and DV)
what’s the difference between an aim and hypothesis?
a hypothesis is a specific prediction about what will happen whereas and aim goes beyond this and includes the purpose of the research
describe a two tailed / non directional hypothesis
predicts the IV will cause a difference in the DV but doesn’t state how
used when there is no previous research, or when research is contradictory
template: there will be a significant difference in DV when IV1 compared to IV2
describe a one tailed / directional hypothesis
predicts there will be a difference and what the difference will be - one will score more, higher, faster etc. than the other group
used when there are previous research findings
template: pp’s who IV1 will e.g. recall more, rate higher etc. than pp’s who IV2
describe a null hypothesis
predicts that the IV will not significantly affect the DV. any differences will be due to chance factors, not manipulation of IV