Experimental Designer Chic
These research designs lack random assignment, leading to potential biases in results
What are quasi-experiments?
The loss of participants over time, which can skew results, is referred to as this.
What is attrition?
When one variable increases while the other decreases, this type of correlation is observed.
What is a negative correlation?
This issue occurs when a third variable influences both of the variables being studied, potentially misleading the results.
What is the third variable problem?
This type of question is phrased to sway respondents toward a particular answer, often influencing their responses.
What is a leading question?
This methodology involves collecting data through questionnaires or interviews to understand opinions and behaviors
What is survey research?
This threat occurs when an external event affects all participants in a study, potentially confounding results.
What is a history threat?
In multivariate design, this term refers to the weight assigned to an independent variable, indicating its impact
What is beta?
An extreme value in a dataset that deviates significantly from other observations.
What is an outlier?
This commonly used rating scale allows respondents to express their level of agreement or disagreement on a statement, typically ranging from "strongly disagree" to "strongly agree."
What is a Likert scale?
This type of research design involves analyzing multiple variables simultaneously
What is multivariate design?
Changes in measurement tools or procedures over time can introduce this threat to validity.
What is instrumentation threat?
This numerical value indicates the strength and direction of a relationship between two variables, ranging from -1 to 1.
What is the correlation coefficient, or r?
This problem refers to the challenge of determining the cause and effect within the relationship between two variables.
What is the directionality problem?
The arrangement of questions in a survey can significantly impact or prime further responses; this concept refers to that arrangement.
What is question order?
This advanced analysis uses several predictors to understand their joint effect on an outcome variable.
What is multiple regression?
This phenomenon describes the tendency for extreme scores to move closer to the average upon retesting
What is regression to the mean?
This statistical method predicts the value of a dependent variable based on one or more independent variables.
What is regression?
This type of association is characterized by a relationship that is not linear, often forming a curve.
What is a curvilinear association?
This bias occurs when respondents provide answers they think are more socially acceptable rather than their true feelings.
What is socially desirable responding?
This design tracks changes over time in a single group, measuring repeatedly at various intervals.
What is an interrupted time series design?
This bias occurs when individuals in different groups have systematic differences that can influence results.
What is the selection effect?
This statistic indicates the proportion of variance in the dependent variable that can be explained by the independent variable(s).
What is the coefficient of determination, or r2?
This issue arises when a variable's range is limited, affecting the correlation observed between two other variables.
What is restriction of range?
This tendency refers to the inclination to agree with statements regardless of their content.
What is acquiescence?