Chapter_5_Formulating a Research Question Flashcards
Week 4
Formulating Research Hypotheses
- Establishing a Background
- Choosing a Topic
- Formulating the Question
- Reviewing the Literature
- Formulating Hypotheses
- Designing the Study
- Writing the Research Proposal
Establishing a Background
- Informal background consists of life experiences
- Formal background consists of the sum of your education and training in behavioral science
Choosing a Topic
- Interest
- personal and professional backgrounds
- uninteresting should be carefully weighed against any expected benefits - Feasibility
- resources
- special populations
- special equipment
Formulating the Question
Refining a Topic Into a Question
- narrow the topic down to which data can be collected
Characteristics of a Good Research Question
- How well GROUNDED the question is in the current knowledge base
- researcher’s background - How RESEARCHABLE it is
- clear operational definitions
- clear hypotheses - IMPORTANCE
- The more information that the answer to a research question can provide
Testing Several Competing Theories
- Multiple theories
- which theory correctly predicts the outcome—can tell us which is more valid - One theory
- test a hypothesis derived from a proposition that is important to the theory
Theory Map
- History of the theory
- Information about why the theory is important
- Evidence supporting or refuting the theory
- (if applicable) similar and competing theories
Boundary Conditions
The conditions under which the effect operates
Literature Review
The process of collecting theoretical, empirical, and methodological information on a topic
3 Purposes of the Literature Review
- Provide a scientific CONTEXT
for the research -> good research question? - Avoid Duplication of effort
- Identify potential PROBLEMS
Types of Information Looking for during Literature Review
- Relevant theories
- comparison
- alternative explanations
- broader context - previous research question
- method
- data analysis
Criteria for Evaluating Research Reports
- Formulating hypotheses
- Internal validity
- Construct validity
- validity
- reliability - Statistical validity
- Interpreting Results
- research strategy used support the conclusions
- alternative interpretations - Generalization
What does it mean that publication is biased toward significant results?
Type I error
- Leading to stronger effect that it really is
Formulating Hypotheses
- Research Hypotheses
- Statistical Hypotheses
Research Hypotheses
An expectation about the relationship between two variables
Statistical Hypotheses
Transforms the research hypothesis into a statement about the expected result of a statistical test
Designing the Study
- How: strategy and a specific design
- What: operational definitions for the hypothetical constructs
- Where
- Who: sampling technique
- When: times of the day, cross sectional, or longitudinal
3 Forms of Replication Research
- Direct Replication
- Conceptual Replication
- Replication and Extension
Direct Replication
Recreate a study as closely as possible
- except samples
3 Functions of Direct Replication
- Controlling for CHANCE results
- Controlling for SITUATIONAL influences on results
- GENERALIZING results to a different population
Conceptual Replication
- different SETTING
- different set of operational DEFINITIONS
- different participant POPULATION
- to investigate the EXTERNAL VALIDITY
Replication and Extension
- adds independent or dependent variables
- makes other additions to the original research that expand its scope
Critical Replications
Test an alternative explanation for the effect found in a previous study
Successful Replication: Direct
- Increases support for the principle
- Type I error is less likely
- Increases the validity of the methods