PPT-Chapter 7 Experimental Design I—Independent Variables

The Research Process Evidencebased practice Search for answers Design and development of a study Funding Human and animal use approval Pilot studies Preliminary data Conduct of the study Collection of the data. Introduction to Experimental Research. Chapter 5. Introduction to Experimental Research. Chapter Objectives. Define a manipulated independent variable and identify examples that are situational, task, and instructional variables. Primary Data . Collection: Experimentation and Test . Marketing. Understand the nature of experiments. Explain the requirements for proving causation. Describe the experimental setting. Explain experimental validity and discuss how researchers control for extraneous variables that might affect validity. Part I: Experimental Designs. . Hypotheses. A hypothesis is a . testable. statement of . causal relationship. between two . variables. , derived from . theory. Must specify a relationship between an . Researcher manipulates the independent variable (usually to create groups) and then compares the groups in terms of their scores on the dependent variable (outcome measure) while keeping all other variables constant through direct experimental control or randomization- If score on the dependent variable are different then the researcher can conclude that the difference was due to the difference between groups and no other cause (and the experiment will have internal validity) . Module . 4. Experimental . psychology . guided-inquiry learning. Module 4: How. to Design an Experiment. ©2012, . Dr. A. Geliebter & Dr. B. Rumain, Touro College & University System. Motivation. Tyler Bassett and Tomomi Suwa. 12.07.2011. Designing A Scientific Study. Thoughts on Experimental Design. Two types of studies. 1) Observational . . 2) Experimental. Observational Study. -Observe subjects and measure variables of interest . Prof Dr. . Remzi. ALTUNIŞIK. Questions to be answered in research design?. What is the study about?. (ii) Why is the study being made?. (iii) Where will the study be carried out?. (iv) What type of data is required?. Independent Variable. Caffeine. Timeof. day. . influences. Dependent Variable. Number. of words recalled. Tea/. Coffee. Noise. Extraneous. Variables. 2 Conditions. Independent Variable. Caffeine. Module . 4. Experimental . psychology . guided-inquiry learning. Module 4: How. to Design an Experiment. ©2012, . Dr. A. Geliebter & Dr. B. Rumain, Touro College & University System. Motivation. So, the basic experimental procedure in social science is:. Gathering of a subject pool and then . random assignment to conditions. Note: the . sample is not random. , but once you have a subject pool you flip a coin, etc. to determine which subjects receive which . The organized procedure used to study an aspect of the natural world under controlled conditions. Experimental Design. Testable Question. Research. Hypothesis. Materials/Procedure. Data Collection. Data Analysis. So, the basic experimental procedure in social science is:. Gathering of a subject pool and then . random assignment to conditions. Note: the . sample is not random. , but once you have a subject pool you flip a coin, etc. to determine which subjects receive which . Independent Variable. Caffeine. Timeof. day. . influences. Dependent Variable. Number. of words recalled. Tea/. Coffee. Noise. Extraneous. Variables. 2 Conditions. Independent Variable. Caffeine. Chapter 9. Experimental Design Research Methods. Experimental Design Research Methods. Experimental design research methods . are one . of the ‘purest’ forms of social science inquiry. . Results .