Psychology 2800E Lecture Notes - Lecture 11: Interrupted Time Series, Time Series, Quasi

• School: Western University
• Department: Psychology
• Course: Psychology 2800E
• Professor: Doug Hazelwood

Document Summary

1 descriptive (describe variables: correlational ( examine the relation between variables. 3 true experiments( examine causal relations) - manipulative iv ( do sth to ps), then. Measure dv ( see what effect iv has) then control all other extraneous variables. Focus is on causal relation btw iv and dv ( must control extraneous variables ) 4 quasi experiments : similar to true exps we have an iv ( defines conditions) We have dv is measured but researcher has no control over the iv ps cannot be randomly assigned to conditions ( no control over who reeives treatment ) No control over when or how the iv is introduced. Must look at what has already been done to ps-- quasi independent. A participants ( or subject ) variables cannot be manipulated with random assignment , must classify p"s based on what is already been done to them eg physical features ( gender , age) no control over it.