Psyc 344 1st Edition Lecture 26 Outline of Last Lecture I. Peer ReviewOutline of Current Lecture II. Quasi- Experimental Research DesignIII. Outcome EvaluationsIV. Problems with DesignCurrent LectureQuasi-Experimental Research Design- Design arose from the need to conduct applied research in settings where perfect control could not be achieved- It’s original purpose was program evaluation, but has broadened to encompass:1. Needs Assessment- Does the target population need to be assessed? 2. This data comes from questionnaires, interviews, and statistical records- Program Theory assessment:1. What should the program actually do?/ How is the problem assessed? - Process Evaluation: This research is performed to determine if the program, as it is designed, is properly implemented.- Outcome Evaluation- Used to determine if the program had a desired effect/ Does the program work?- Efficiency Assessment- Used to perform a cost benefit analysis on the program/ Was the money used as efficiently as possible?Problems with Quasi-Experimental Designs- Weak Internal Validity: No control groups/ not properly constructed. Can never conclude improvements are because of what you did. Confounds that you can’t control- Maturation- Changes may occur on their own over time due to changes in a person’s age or physical appearance- History- Changes may occur due to experiences that the person has had that are independent of the experimental manipulation.- Testing- Person may learn from their results on the pretest- Instrumentation- Changes may occur due to changes made to the testing instrument These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.- Regression toward the mean/ statistical regression- Mortality- Changes may occur from participants leaving or passing away - Selection- there may be differences between the groups due to the individuals in these groups- Selection-maturation interaction- groups may change systematically over time based on the composition of the groupsSetup of Quasi- Experimental Research Design- One group pretest posttest design- Nonequivalent control group design:2. Post test only design3. Pretest post test design (superior)- Interrupted Time series design- compare one group at different points in time. Best if measured for a number of years- Control Series design- an interrupted time series design with a nonequivalent control group