What is a research design in which neither the experimenter nor the participants know who is in the experimental group and who is in the control group?
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Quantitative research- concerned with precise measurement, replicable, controlled and used to predict events. It is a formal, objective, systematic process. Numerical data are used to obtain information about the subject under study. Show
-uses data that are numeric -primarily intended to test theories -it is deductive and outcome orientated -examples of statistical techniques used for quantitative data analysis are random sampling, regression analysis, factor analysis, correlation, cluster analysis, causal modeling and standardized tests For comparative information on qualitative v.s. quantitative see: The University of Arkansas University Library Lib Guides Related InformationRelated Information
Experimental group- the group of subjects receiving the experimental treatment, i.e., the independent variable (controlled measure or cause) in an experiment. Independent variable- the variable or measure being manipulated or controlled by the experimenter. The independent variable is assigned to participants by random assignment. Dependent variable or dependent measure- the factor that the experimenter predicts is affected by the independent variable, i.e., the response, outcome or effect from the participants that the experimenter is measuring. Four types of Quantitative ResearchDescriptive 1) Descriptive- provides a description and exploration of phenomena in real-life situations and characteristics. Correlational of particular individuals, situations or groups are described. ComparativeComparative 2) Comparative- a systematic investigation of relationships between two or more variables used to explain the nature of relationships in the world. Correlations may be positive (e.g., if one variable increases, so does the other), or negative (correlation occurs when one variable increases and the other decreases). Quasi-experimentalQuasi-experimental 3) Quasi-experimental- a study that resembles an experiment but random assignment had no role in determining which participants were placed on a specific level of treatment. Generally would have less validity than experiments. Experimental (empirical)Experimental (empirical) 4) Experimental (empirical) method- the scientific method used to test an experimental hypothesis or premise. Consists of a control group (not exposed to the experimental treatment, i.e.. is dependent) and the experimental group (is exposed to the treatment, i.e., independent) Last Updated: Aug 24, 2020 10:33 AM
Nonexperimental DesignsNonexperimental designs include research designs in which an experimenter simply either describes a group or examines relationships between preexisting groups. The members of the groups are not randomly assigned and an independent variable is not manipulated by the experimenter, thus, no conclusions about causal relationships between variables in the study can be drawn. Generally, little attempt is made to control for threats to internal validity in nonexperimental designs. Non-experimental designs are used simply to answer questions about groups or about whether group differences exist. The conclusions drawn from nonexperimental research are primarily descriptive in nature. Any attempts to draw conclusions about causal relationships based on nonexperimental research are done so post hoc. This entry begins by detailing the differences between nonexperimental and other research designs. Next, ... locked icon Sign in to access this contentSign in Get a 30 day FREE TRIAL
sign up today! When neither the participants nor the experimenter knows which group of participants is the experimental one the study is known as a?A type of clinical trial in which neither the participants nor the researcher knows which treatment or intervention participants are receiving until the clinical trial is over.
What is an experimental design in which neither the participant nor the researchers are aware of each participants assignment is called?Thus, In Double-blind studies, neither the participants nor the researchers administering the treatment know which group is the experimental or the control group.
What is the term for an experimental design in which neither the subjects nor the experimenter knows which is the control group and which is the experimental group?Experimental and Control Groups
This allows the researcher to assess how much effect the actual administration of the stimulus has on the outcome of interest. The double-blind experiment: in this design, neither the subjects nor the experimenter know who is in the experimental group and who is in the control group.
When both the experimenter and the participants are unaware of who is in the experimental or control group the research design can be called?In many experiments, either experimenters or participants are unaware of the experimental condition they are in. If only one of these groups, usually the participants, is “blind” to the intervention, then the study is said to have a single-blind design.
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