types of research

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Information about types of research

Published on July 18, 2010

Author: manojpraveeng

Source: authorstream.com

Slide 1: Types of Research Problem Statements : Problem Statements Will students taught using problem solving methods comprehend the information at a higher level than students taught using lecture methods? Do students who were exposed to a North Indian culture make a higher salary than students who were not exposed to a North Indian culture? Problem Statements : Problem Statements Will college students accept a computer-aided information system as a means of obtaining information from the University Extension service? Do the Private B.Ed College Owners in Kerala anticipate an increase in enrolment of Bed students ? Problem : Problem How do you classify research? Why do we need to classify research? : Why do we need to classify research? So that we can follow procedures appropriate to that type of research. To help us in interpreting the findings/results. To help us identify problems associated with that type of research. What do you need to know in order to be able to classify research? : What do you need to know in order to be able to classify research? Purposes (ends sought) of research Types of research Purposes of Research : Purposes of Research Describe To describe groups and/or situations in terms of characteristics (variables) Explain/Predict To investigate relationships in terms of independent variables Determine cause/effect To control independent variables in order to determine their effect on dependent variables Types of Research : Types of Research Descriptive Survey Correlational Ex Post Facto (Book calls causal-comparative) Experimental “true” or “quasi” Classification of Research : Classification of Research Purpose 1. Describe 2. Explain/Predict 3. Cause/Effect Type 1. Descriptive-Survey 2. Descriptive- correlational; Ex Post Facto 3. Experimental Classification of Research : Classification of Research Purpose 1. Describe 2. Explain/Predict 3. Cause/Effect Goals 1. Specific objectives or questions 2. and 3. Research hypotheses (if rationale exists) Classification of Research : Classification of Research Purpose 1. Describe 2. Explain/Predict 3. Cause/Effect Ind. Variables 1. None 2. Not manipulated 3. Manipulated Classification of Research : Classification of Research Purpose 1. Describe 2. Explain/Predict 3. Cause/Effect Interpretation 1. Describe units 2. relationships between variables 3. Cause-effect statements (control) Descriptive Research : Descriptive Research Survey Correlational Others developmental longitudinal cross-sectional documentary trend Descriptive Research : Descriptive Research Advantages can collect much data “real-world” situations necessary first step before using other types Disadvantages not enough depth findings frequently lack generalizability Ex Post Facto Research : Ex Post Facto Research Ex Post Facto means “after the fact”-- studying the influence of independent variables after variation has occurred No control of variables Common with educational/social science research Conditions Necessary for Inferring Cause : Conditions Necessary for Inferring Cause In order to say that x caused y, you must have evidence that: x and y are statistically related x preceded y in time other factors did not cause x Experimental Studies : Experimental Studies Control of independent variable by researcher True experiments random assignment to groups random assignment of treatment(s) to groups Quasi-experiments lack of total control Application -Example : Application -Example Application-Example : Application-Example Application-Example : Application-Example Application-Example : Application-Example Application-Example : Application-Example Application-Example : Application-Example

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