Psychology 2800E Lecture Notes - Lecture 4: Internal Validity, Random Assignment, Measure R
9 Feb 2016
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Research shows that students can have different academic achievement orientations: In general people tend to apprach reqards and avoid punishments. Temportal precedence=exposed to colour of ink before the test. >if one bar is higher than the other=covariance! >manipulated (experimentor can determine different levels/conditions and assign participants to these levels) >ex: ink colour (levels or conditions: red, black, green) The main reason researchers do experiments is to make casual claims. >posttest only=is because dependent variable is only measured once and before independent variable. >pretest/posttest=dependent measure before and after each iv measure. If we want to see some sort of change. Avoid this because itll give people time to practice and they know what to expect from the pretest when they go to complete the post-test. >each participant takes part in each independent level. >ex: a person will do the anagram test in black, green, and red. Expose all levels of iv and measure dv at each level of iv.
