Aims And Hypothisis Flashcards
What are aims
A clearly phrased general statement about what the investigator intended to research
What does an aim include
- purpose of study
- praised as a question or statement
What is a hypothesis
A precise testable statement including levels of the IV and DV
What is operationalition and why is it important
- Demonstrating exactly how variables are to be measure
Eg instead of reaction time operationalisation it would be reaction time in milliseconds
What does the null hypothesis state
The is no difference in the measurement if the DV as a result of the manipulation in the IV
What are the 2 types alternative hypothesis
Non directional and directional
What does a non directional hypothesis state
There is a difference in the measurement of the DV as a result of the manipulation IV (but NOT the direction the results will go in)
Eg there is a difference in the number of words recalled
What does Directional hypothesis state
There is a difference between DV due to IV ( and says which what the results will go )
Eg there is an increase in the number of words recalled…
When will a researcher use a directional hypothesis
I there is previous research that suggests which way the results are likely to go