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aims and hypothesis - Coggle Diagram
aims and hypothesis
examples
non-directional experimental hypothesis- there will be a significant difference in the marks achieved in a Psychology exam by students using mind maps for revision compared to students who just used their notes
null hypothesis- any difference in marks achieved in a Psychology exam by students using mind maps for revision compared to students who just read their notes is due to chance
directional experimental hypothesis- students using mind maps for revision will achieve a significantly higher mark in their Psychology exam than those who just read their notes
directional alternative hypothesis- there will be a significant positive correlation between the number of hours students spend revising and the marks they achieve in their psychology exam
aim- the aim of this study is to investigate the effect that using mind maps for revision has on students' performance in exams
non-directional alternative hypothesis- there will be a significant relationship between the number of hours students spend revising and the marks they achieve in their Psychology exam
null hypothesis for correlation- any relationship between the number of hours students spend revising and the marks they achieve in their Psychology exam is due to chance
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definitions
research hypothesis- a prediction of the outcomes (findings) of a research study- not written as a question
experimental hypothesis- research hypothesis for experiments- difference in DV when IV is changed
alternative hypothesis- hypothesis for non-experiments e.g. correlation studies
directional hypothesis- predicts the direction a DV will change when the IV is manipulated or the direction of relationship (+ or -) in a correlation study
used when sure of the outcome of study
non-directional- simply predicts there will be a change on the DV when an IV has been manipulated or that there will be a relationship in a correlation study. it does not predict a direction
used when unsure of outcome of a study
null hypothesis- a prediction that any difference or correlation is not significant and is due to chance
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