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Worksheet: Research Designs: Quasi-Experimental, Case Studies & Correlational Research Designs https://study.com/academy/lesson/research-designs-quasi-experimental-case-studies-correlational.html 1. How do you define cross-sectional research? Research studies that look at one individual or one group at one moment of time. Research studies that look at one individual or one group over a period of time. Research studies that make a comparison of different groups at the same time. Research studies that show positive relationships, or relationships that change in the same direction. 2. What is the difference between a cross-sectional study and a cross-sequential study? A cross-sectional study compares groups at the same time, while a cross-sequential study compares groups over different periods of time. A cross-sequential study compares two groups at the same time, while a cross-sectional study compares more than two groups at the same time. A cross-sectional study compares two groups at the same time, while a cross-sequential study compares more than two groups at the same time. A cross-sequential study compares groups at the same time, while a cross-sectional study compares groups over a different period of time. 3. How can a researcher increase the validity of a case study? By describing only what is being seen and avoiding making inferences. By making accurate inferences about what is being observed. By making accurate hypothesis about what is being observed. By describing what is being seen and making a correlation with other studies. 4. Research studies that look at one individual or one group over a period of time are called _____. case studies cross-sequential research longitudinal research cross-sectional research 5. All of the following statements are true about correlational research, EXCEPT: It shows positive relationships, or relationships that change in the same direction. It shows when a relationship between two different items or events is nonexistent. It is not able to show negative relationships, or relationships that change in different directions. It examines relationships between two different items or events. Worksheet: Quasi-Experimental Designs: Definition, Characteristics, Types & Examples https://study.com/academy/lesson/quasi-experimental-designs-definition-characteristics-types-examples.html 1. Greta wants to study how age affects hair growth. To study this, Greta finds a group of ten-year-olds, a group of twenty-year-olds, and a group of fifty-year-olds. Which of the following experimental designs is Greta using? Cross-Sectional Ex Post Facto Pretest-Posttest Logitudinal 2. Which of the following studies would use an ex post facto design? Yolanda wants to study the effect of late-night cramming on test scores. Theo wants to study the effect of a math game on test scores. Walt wants to study the effect of age on test scores. Megan wants to study the effect of brain damage on test scores. 3. Gregg chooses a group of subjects in order to study the effects of age on memory. He starts with a group of three-year-olds, and checks in with that same group of subjects when they are fifteen, thirty, and sixty-five. Which of the following type of experimental design is Gregg using? Cross section Longitudinal Ex Post Facto Pretest-Posttest 4. Hannah tests her subjects, gives them a treatment, and then tests them again. What type of quasi-experimental design is Hannah using? Cross-Sectional Logitudinal Ex Post Facto Pretest-Posttest 5. Marco is conducting a quasi-experiment, while Maria is conducting a true experiment. What is the main difference between Marco’s and Maria’s experiments? Marco randomly assigns his subjects to groups while Maria does not. Maria randomly assigns her subjects to groups while Marco does not. Marco’s findings will be more reliable than Maria’s findings. There is no significant difference between Marco’s and Maria’s experiments.
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