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Questions and Answers
What is the main purpose of a research design?
What is the main purpose of a research design?
Which type of design involves selecting a portion or segment from the population for study?
Which type of design involves selecting a portion or segment from the population for study?
In research, what are extraneous variables that are not part of the study but believed to influence the outcomes called?
In research, what are extraneous variables that are not part of the study but believed to influence the outcomes called?
What happens when the subjects or respondents of a study are not randomly selected?
What happens when the subjects or respondents of a study are not randomly selected?
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Which term refers to physical, emotional, and psychological changes that most subjects undergo over a longer period of time?
Which term refers to physical, emotional, and psychological changes that most subjects undergo over a longer period of time?
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What are instruments in research used for?
What are instruments in research used for?
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Which type of experimental design involves assigning subjects to groups, giving the experimental group the treatment, and then giving a posttest to both groups?
Which type of experimental design involves assigning subjects to groups, giving the experimental group the treatment, and then giving a posttest to both groups?
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What is the term for the threat to validity that occurs when subjects have been exposed to the treatment through taking the pretest, affecting the posttest results?
What is the term for the threat to validity that occurs when subjects have been exposed to the treatment through taking the pretest, affecting the posttest results?
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In which type of experimental design are subjects randomly assigned to four groups, with two pretested and two receiving the routine treatment?
In which type of experimental design are subjects randomly assigned to four groups, with two pretested and two receiving the routine treatment?
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What is the term for the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
What is the term for the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
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Which threat to external validity occurs when respondents or subjects respond artificially to the treatment because they know they are being observed as part of a research study?
Which threat to external validity occurs when respondents or subjects respond artificially to the treatment because they know they are being observed as part of a research study?
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Which threat to internal validity happens when an unusual event affects the result of an experiment during its conduct?
Which threat to internal validity happens when an unusual event affects the result of an experiment during its conduct?
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What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
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'Measurement Effect' refers to which type of effects of the pretest?
'Measurement Effect' refers to which type of effects of the pretest?
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What is the process through which a researcher selects a portion or a segment from the population at the center of the researcher's study?
What is the process through which a researcher selects a portion or a segment from the population at the center of the researcher's study?
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In research, what are extraneous variables that are not part of the study but are believed to influence the outcomes called?
In research, what are extraneous variables that are not part of the study but are believed to influence the outcomes called?
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Which type of experimental design involves selecting a portion or segment from the population for study?
Which type of experimental design involves selecting a portion or segment from the population for study?
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What is the term for the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
What is the term for the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
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Which type of effects of the pretest does 'Measurement Effect' refer to?
Which type of effects of the pretest does 'Measurement Effect' refer to?
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What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
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Which type of experimental design involves randomly assigning subjects to four groups, two of which are pretested and the other two receive the routine treatment?
Which type of experimental design involves randomly assigning subjects to four groups, two of which are pretested and the other two receive the routine treatment?
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What type of threat to validity occurs when an unusual event affects the result of an experiment during its conduct?
What type of threat to validity occurs when an unusual event affects the result of an experiment during its conduct?
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What term refers to the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
What term refers to the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents?
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What type of threat to external validity occurs when respondents or subjects respond artificially to the treatment because they know they are being observed as part of a research study?
What type of threat to external validity occurs when respondents or subjects respond artificially to the treatment because they know they are being observed as part of a research study?
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What is the term for a threat to validity that occurs when subjects have been exposed to the treatment through taking the pretest, affecting the posttest results?
What is the term for a threat to validity that occurs when subjects have been exposed to the treatment through taking the pretest, affecting the posttest results?
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Which type of design involves selecting a portion or segment from the population for study?
Which type of design involves selecting a portion or segment from the population for study?
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What is the term for extraneous variables that are not part of the study but believed to influence the outcomes?
What is the term for extraneous variables that are not part of the study but believed to influence the outcomes?
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What happens when the subjects or respondents of a study are not randomly selected?
What happens when the subjects or respondents of a study are not randomly selected?
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What is the term for physical, emotional, and psychological changes that most subjects undergo over a longer period of time?
What is the term for physical, emotional, and psychological changes that most subjects undergo over a longer period of time?
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What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
What is it called when there is a threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment?
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Study Notes
Research Design
- The main purpose of a research design is to ensure that the data collected is relevant, accurate, and reliable.
Sampling
- Selecting a portion or segment from the population for study is called sampling.
- Sampling involves selecting a portion of the population to represent the entire population.
Extraneous Variables
- Extraneous variables that are not part of the study but believed to influence the outcomes are called confounding variables.
Threats to Validity
- When subjects or respondents of a study are not randomly selected, it can lead to bias and affect the validity of the results.
- The term for physical, emotional, and psychological changes that most subjects undergo over a longer period of time is maturation.
- The term for the threat to validity that occurs when subjects have been exposed to the treatment through taking the pretest, affecting the posttest results is pretest-treatment interaction.
- The term for the threat to validity that appears when the characteristics of the researcher affect the behavior of the subjects or respondents is experimenter effect.
- The term for the threat to external validity that occurs when respondents or subjects respond artificially to the treatment because they know they are being observed as part of a research study is Hawthorne effect.
- The term for the threat to internal validity that happens when an unusual event affects the result of an experiment during its conduct is history.
- The term for the threat to validity due to one or more subjects dying, dropping out, or transferring, as in the case of a student who has not completed participation in the experiment is mortality.
Experimental Design
- The type of experimental design that involves assigning subjects to groups, giving the experimental group the treatment, and then giving a posttest to both groups is called posttest-only design.
- The type of experimental design that involves randomly assigning subjects to four groups, with two pretested and two receiving the routine treatment is called Solomon four-group design.
- The type of experimental design that involves selecting a portion or segment from the population for study is called sampling.
Measurement Effect
- 'Measurement Effect' refers to the effect of the pretest on the posttest results.
Instruments
- Instruments in research are used to collect data and measure the variables of interest.
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Description
Test your knowledge of data understanding and research methodology including quantitative research, sampling, and research instrument design. This quiz covers the overall strategy used by researchers, the process of sampling, and the tools used to gather data for research topics.
