Designs
What is RCT?
Randomized-Controlled Trial, randomly assigned to experimental or control group
AB Design - What are the phases?
Single baseline phase and single treatment phase.
Random Selection
Selecting the participants to join the study randomly
Define Blocking
Grouped into relevant categories before randomization to experimental groups
What is a dismantling study?
Full treatment is compared to a comparison group that receives the treatment minus one component
Reverse Design
Baseline, treatment, then treatment withdrawn and data are collected to determine if the behavior returns to its original level upon withdrawal
Random Assignement
Randomly placed in the experimental groups, control or treatment
Within vs Between
The same individuals are assessed at two or more points in time vs different groups
Multi factorial design
More than one factor (IV) Can be multiple levels of each IV.
ABAB Design
Baseline, Treatment, Baseline again, treatment
Order Effects
Order(e.g., first, second, third) in which the experimental materials are presented to them
Moderator
Influences the strength of a relationship between two other variables,
What co-occurs with what, does NOT signify causation, just that the two are connected in some way.
Multiple Baseline
does not involve withdrawal of treatment and instead you apply the treatment sequentially across different baselines. (i.e. different persons, behaviors, or situations) at different points in time
Counterbalancing
Use separate groups of subjects, each group receiving treatments in a different order.
This is to fix order effects
Mediator
One that explains the relationship between the two other variables
A researcher is testing students how well they do in class, based on them doing readings. The researcher compares two groups, one that completed the reading and the other which didn't. This is a
Between Groups Design
Change Criterion
Make a baseline, set goal 1, when its achieved set goal 2
Single-Blind vs Double Blind
One group (researcher or participant) knows which group is which vs no one knowing
Hawthorne Effect
Individuals modify an aspect of their behavior in response to their awareness of being observed