Exam 12: Quasi-Experimental and Longitudinal Designs: Examining Relationships in Applied Setting

The analysis of whether changes in one variable in a time series cause subsequent changes in another variable in the series is referred to as an analysis of concomitance in time series.

In a time-series design, the point at which the treatment takes place is called a(n) _____.

The usefulness of quasi-experimental designs for advancing knowledge is directly related to how thoroughly an investigator examines and controls for the:

X₁ O₁ is a diagram of a one-group posttest-only design, which is a type of uninterpretable nonequivalent groups designs.

The broken line used in a diagram for a cohort design indicates that the two groups in the design are successive cohorts and not nonequivalent groups.

Which of the following cohort designs has more than one level of treatment?

Which of the following is a disadvantage of the one-group pretest-posttest uninterpretable design?

One of the most functional reasons for choosing a true experimental design over a quasi-experimental design is often that of cost.

A true experimental design differs from a quasi-experimental design in terms of the _____.

In terms of the MAXMINCON principle, researchers using a quasi-experimental design can both minimize differences in the independent variable(s) and maximize error variance due to measurement issues.

Consider the following diagram of a quasi-experimental design: Non R O_A1 X O_B2 Non R O_A1 O_B2 This design represents the _____.

In the context of interpretable nonequivalent groups designs, _____ is the main problem with a reversed-treatment pretest-posttest design.

In the context of the selection of participants for research, a selection-by-threat interaction effect occurs when the threats to internal validity operate similarly across treatment conditions.

One way to reduce the threat of history to the internal validity of a simple interrupted time-series design is to add a second dependent variable that theoretically will not be affected by the treatment.

An advantage of the true experimental design in field settings is that the random assignment of participants into groups is easily achievable.

A hallmark of a true experimental design is the random assignment of participants to various treatment conditions, allowing a researcher to control many of the threats to internal validity.

Which of the following designs is an interpretable nonequivalent groups design?

Time-series designs are characterized by:

The pretest-posttest nonequivalent groups design is a stronger and more interpretable design than the posttest-only nonequivalent groups design because it allows for an examination of:

Time-series designs are a class of quasi-experimental designs in which comparisons are made between participants in nonrandomly formed groups.