Ch. 10-Within Subjects Design Flashcards
Behavioural Diary
Self report data collection strategy where individuals record their bheaviours and associated feelings as they occur
Pretest-Posttest Design
Within subjects design
Participants are measured before and after exposure to treatment
Repeated Measures Design
Participants are exposed to each level of the IV and are measured on the dependent variable after each level
No baseline measurement
Longitudinal Design
Participants are repeatedly measured on the dependent variable over a period of time
Attrition
Differential dropping out of participants from a study
Also known as mortality
Testing Effect
Threat to the internal validity of a study where participants scores may change on subsequent measurements because of their increased familiarity with the instrument
Instrumentation
threat to internal validity due to changes in how a variable is measured during the ocurse of a study
History
Threat to internal validty due to an external event potentially influencing participants behaviour during the study
Maturation
Threat to internal validity stemming from either long term or short term physiological changes occurring within the participants that may influence the dependent variable
Order Effect
Threat to internal validty
Results from influence that the seequence of experimental conditions can have on the dependent variable
Practice Effect
Changes in a participant’s responses due to increased experience with the measurement instrument, not the variable under investigation
Fatigue Effect
Deterioration in measurements due to participants becoming tired, less attentive, or careless
Carryover Effect
Exposure to earlier experimental conditions influencing responses to future conditions
Sensitization Effect
Continued exposure to experimental condition
increases likelihood of hypothesis guessing, influences responses in later experimental conditions
Counterbalancing
Using all potential treatment sequences in a within subjects design
