{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Methods___Online

# Methods___Online - Correlational study-A study in which we...

This preview shows pages 1–13. Sign up to view the full content.

Correlations range from -1.00 to 1.00. The closer to -1.00 or 1.00, the stronger the relation between the two variables. Correlational study --A study in which we observe two variables simultaneously to see if they are related to one another. +1 -1

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Trait aggressiveness and hockey penalties: Predicting hot tempers on the ice. Sample : 91 boys Independent Variable (IV): Score on the Physical Aggression subscale Dependant Variables (DV): Minutes of penalized for aggressive penalties : Roughing, tripping, slashing non-aggressive penalties : Delay of game, no mouth guard
Results r = .33 between trait aggressiveness and number of aggressive penalty minutes r = .04 between trait aggressiveness and number of non-aggressive penalty minutes

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
The correlational method suffers from two important disadvantages : The directionality problem The third variable problem Correlation does not imply Causation!! The correlational method has advantages : Important variables Natural settings
The Directionality Problem Hypothesis : Marital dissatisfaction and depression are positively related. Which variable is the causal one? Marital Dissatisfaction Marital Dissatisfaction Depression Depression OR

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Maybe the relation is not causal at all. Perhaps it is due to a third variable . Example: Ice cream sales and crime rate are positively correlated. The Third Variable Problem
Ice Cream Sales Temperature Crime Rate The Third Variable Problem

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Urban Crowding Poverty Crime Rate The Third Variable Problem
Try to find the alternative explanations in the following . . .

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
A study found that as the number of mules in a given state increases, the number of PhDs earned within the state decreases.
A recent study of soldiers stationed on army bases found that the number of tattoos a soldier had was correlated positively with becoming involved in a motorcycle accident.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Recently, it was reported that a correlation exists between people’s tendency to eat breakfast in the morning and how long they live, such that people who skip breakfast die younger.
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 32

Methods___Online - Correlational study-A study in which we...

This preview shows document pages 1 - 13. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online