PI - Correlation 0.0 / 5 ? PsychologyCorrelationASAQA Created by: chloegreenwoodCreated on: 09-05-15 15:33 What does a correlation study do? Investigate whether there's a relationship between co-variables. 1 of 14 What is a positive correlation? As one co-variable increases, so does the other. 2 of 14 What is a negative correlation? As one co-variable increases, other decreases. 3 of 14 What is no correlation? No relationship between co-variables. 4 of 14 What is two-tailed correlational hypothesis? 'there will be a significant correlation between... (doesn't show direction) 5 of 14 What is a one-tailed correlational hypothesis? 'there will be a significant positive/negative correlation between...' 6 of 14 What's a null hypothesis? 'there will not be a significant correlation between... any relationship will be due to chance factors. 7 of 14 What is correlation co-efficient? Whether the relationship is positive or negative and strength between +1 & -1 8 of 14 Advantage of scatter graph? Can draw broad conclusions about relationship & direction. 9 of 14 x2 disadvantages of scattergraph? Doesn't justify effect on co-variable, doesn't justify hypothesis/direction. 10 of 14 What are findings? x4 examples Raw data - mean. median, mode, outlier 11 of 14 Give x2 conclusion examples Positive/negative/no correlation, range values fall between. 12 of 14 x3 advantages of correlation studies? Tell us something new, Useful when variables can't be manipulated, Good starting point for research. 13 of 14 x2 disadvantages of correlation studies? Don't tell anything about cause and effect, Inferential statistical tests don't always pick up on a relationship. 14 of 14
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