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Internal and External Validity Saw 240 Week 5 Slides (2nd Set)1Defining Characteristics When research is designed to investigate cause and effect relationships (explanatory research) through the direct

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How to fill out internal and external validity

How to fill out internal and external validity:

01

Identify the research question: Before addressing internal and external validity, it is important to have a clear research question in mind. This question should define the topic of interest and the specific objectives of the study.

02

Determine the study design: The study design will depend on the research question and the available resources. Common study designs include experimental, observational, and quasi-experimental designs. Each design has different implications for internal and external validity.

03

Address internal validity: Internal validity refers to the degree to which the study accurately measures the causal relationship between the independent and dependent variables. To enhance internal validity, consider the following:

3.1

Random assignment: If conducting an experimental study, it is essential to randomly assign participants to different groups. This helps to minimize potential bias and ensure that any observed effects are truly due to the independent variable.

3.2

Control group: For experimental studies, include a control group that does not receive the intervention or treatment. This allows for a comparison and helps to establish causality.

3.3

Measurement reliability and validity: Use reliable and valid measures to collect data. This ensures that the variables are accurately measured and reduces measurement error.

04

Consider external validity: External validity refers to the generalizability of the study's findings to a larger population or other settings. To enhance external validity, consider the following:

4.1

Sample representativeness: Ensure that the sample used in the study is representative of the target population. This helps to increase the generalization of findings.

4.2

Ecological validity: The study should be conducted in a naturalistic setting if possible, to enhance ecological validity. This means that the findings are more likely to be applicable to real-world situations.

4.3

Contextual factors: Consider any contextual factors that may influence the generalizability of the findings, such as cultural, demographic, or environmental variations.

Who needs internal and external validity:

Researchers and practitioners in various fields require internal and external validity to ensure the credibility and applicability of their studies. These include:

01

Academics and scientists: Researchers need internal and external validity to accurately evaluate the relationships between variables and draw valid conclusions. It helps to establish the robustness of their findings and contribute to the body of knowledge in their respective fields.

02

Policy makers: Decision-makers rely on studies with high internal and external validity to develop evidence-based policies and interventions. Valid and reliable research findings help inform policy decisions that can effectively address social, economic, and health-related issues.

03

Practitioners and professionals: Professionals in fields such as medicine, psychology, and education rely on research with strong internal and external validity to guide their practice and make informed decisions. By considering high-quality studies, professionals can ensure that their interventions and treatments are based on sound evidence.

In conclusion, understanding and addressing internal and external validity is crucial for researchers and professionals in various fields. By taking steps to enhance internal validity and considering factors that affect external validity, valid and reliable research findings can be obtained, making a valuable contribution to the scientific community and informing practical applications.

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What is internal and external validity?

Internal validity refers to the extent to which a study's design allows you to draw conclusions about causality. External validity refers to the extent to which the findings of a study can be generalized to other populations, settings, or time periods.

Who is required to file internal and external validity?

Researchers conducting studies or experiments are typically required to report on internal and external validity.

How to fill out internal and external validity?

Internal and external validity can be filled out by assessing the study's design, methodology, and potential sources of bias.

What is the purpose of internal and external validity?

The purpose of internal and external validity is to ensure that research findings are reliable, accurate, and applicable to real-world settings.

What information must be reported on internal and external validity?

Information such as study design, sampling methods, control of variables, and generalizability of results must be reported.

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