PSYC 300 Study Guide - Final Guide: Internal Validity, Confounding, Interrupted Time Series

• School: University of Maryland
• Department: Psychology
• Course: PSYC 300
• Professor: Edward Bernat

Document Summary

Carryover effects: (ways to deal with them and 2 situations which they can"t be dealt with: name. Methods of counterbalancing (properties): latin square design (why is this better than a full counterbalanced design)- Basic time-series design: primary feature of an interrupted time series design, weakness of such a design and how we can make a design better (think nonequivalent control group) The standard that the observed data must meet (significance level). Usually (. 05): p-value- the probability value, that shows the likelihood of an observed statistic occurring on the basis of the sampling distribution. This will take into consideration that unusual outcomes may occur in more than one way: type i error- when there is a rejection of the null hypothesis when it is in fact true. This is called alpha: type ii error- failing to reject the null hypothesis when the null hypothesis is really false.