The broad-objective of the Belmont-Report is to

A. Measurement Bias: Measurement bias occurs when data collection tools or procedures systematically misrepresent the variable being measured. It affects the accuracy of measurements rather than the representativeness of the sample, so it is not related to the sample’s generalizability.

B. Detection Bias: Detection bias arises when outcome assessment is influenced by knowledge of the intervention or participant characteristics, potentially affecting the objectivity of measurements. It involves differential observation, not sample selection.

C. Reporting Bias: Reporting bias occurs when the dissemination of research findings is influenced by the nature or direction of results, such as selectively publishing significant outcomes. It pertains to publication or communication rather than the initial study sample.

D. Selection Bias: Selection bias occurs when the study sample is not representative of the target population, often due to nonrandom sampling or exclusion of certain groups. This compromises external validity, making study results less generalizable to the broader population.

A. Descriptive research question: Descriptive research aims to observe, describe, and document characteristics or behaviors without manipulating variables. Experimental studies are not typically used for purely descriptive purposes, as they involve intervention and control.

B. Interventional research question: Experimental studies are designed to test the effects of an intervention or treatment by manipulating independent variables and observing outcomes. Randomization, control groups, and systematic manipulation allow researchers to establish causal relationships, making experimental designs ideal for answering interventional questions.

C. Relational research question: Relational research focuses on examining associations or correlations between variables without necessarily manipulating them. While experimental studies can explore relationships, non-experimental correlational designs are more commonly used for purely relational research questions.