What is the threat of history in research?
What is the threat of history in research?
History is a threat to internal validity; it refers to any event other than the independent variable that occurred in or out of the experiment that may account for the results of the experiment. It refers to the effects of events common to subjects in their everyday lives.
What is a history threat to internal validity refers to the possibility that?
History. A threat to internal validity; refers to events that occur between the DV measurements in a repeated measures design. Maturation. A threat to internal validity; refers to changes in participants that occur over time during an experiment; could include physical maturation or tiredness, boredom, hunger, etc.
Which of the following is a concern when selecting subjects for an experiment quizlet?
Which of the following is a concern when selecting subjects for an experiment? Ask subjects whether they prefer to be in the experimental group or the control group, then assign subjects based on their preference.
Which is a threat to external validity quizlet?
selection effect: threat to external validity : the criteria used to select subjects may limit generalizability. for example, in many pharmacological studies the subjects cannot have any illness other than the one for which the drug is intended.
Which of the following is an example of a history threat quizlet?
Which of the following is an example of a history threat? A televised national disaster that all participants watch (like the 9/11 attacks or the Challenger explosion).
What are history effects in psychology?
History effects refer to the measurement of behavior at different points in time which could result in differences reflecting the impact of the independent variable or extraneous and unwanted effects occurring as a result of cultural change (war, famine) over which the experimenter has no control.
What is the meaning of the threat to internal validity called history quizlet?
History. A threat to internal validity; refers to events that occur between the DV measurements in a repeated-measures design.
What is history in internal validity?
3 Threats to Internal Validity ‘History’ refers to the possibility that specific events, other than the intended treatment, may have occurred between the pretest and post-test observations and may obscure the true treatment effect.
Which of the following is not considered a threat to internal validity in an experimental design?
Which of the following is not considered a threat to internal validity in an experimental design? Matching subjects in the experimental group to those in the comparison group.
What technique can be used to help reduce the threat to experimental mortality quizlet?
Which technique can be used to help reduce the threat to experimental mortality? Construct validity refers to generalizing from our experimental observations to causal processes in the real world. Experiments in criminal justice typically require only one experimental and one control group for each study.
Which is a threat to the external validity of a study?
What are threats to external validity? There are seven threats to external validity: selection bias, history, experimenter effect, Hawthorne effect, testing effect, aptitude-treatment and situation effect.
What are threats to external validity compromise quizlet?
What do threats to external validity compromise? The researcher’s confidence in saying the study’s results are applicable/generalizable to other groups.
What is the history threat in psychology?
If the history threat occurs for both groups, the difference between the two groups will not be due to the history event. A history effect can arise when specific events occur between the first and second measurement that are in addition to the experimental and independent variable.
What is history of history in psychology?
History. History is a threat to internal validity; it refers to any event other than the independent variable that occurred in or out of the experiment that may account for the results of the experiment. It refers to the effects of events common to subjects in their everyday lives. Events that occurred in the weather,…
What is a threat to an experiment’s validity?
A threat in this context refers to ways that internal validity of an experiment is jeopardized. A threat is also something that causes confounds in an experiments internal validity. Examples of threats facing internal validity are History, Maturation, Attrition, Testing among others.
What is an example of history threat in research?
Examples of situations that illustrate how history threat can affect the findings include, an 8 year study of naturally occurring heart disease incidence, such as, the expected number of heart disease cases that would “normally” be expected in study subjects is likely to be effected by history.