ch. 11 more on experiments
ch. 12 experiments with with 2+ IVs
ch. 13 quasi experiments with small N designs
ch.14 replication generalization and the real world; qualitative
100
What is the acronym for threats to internal validity?
🞆M - Maturation threat
🞆R - Regression threat
🞆S - Selection bias (Chapter 10)
🞆H – History threat
🞆R – Researcher bias
🞆I – Instrumentation Threats
🞆M - Mortality (AKA attrition threat)
🞆P – Placebo effects
🞆D – Demand characteristics
🞆O – Observer Bias
🞆T – Testing threat (practice effects)
🞆S – Situation noise
100
What are the two types of interactions?
crossover and spreading
100
Name of design where at least one treatment group and at least one comparison group but no random assignment
nonequivalent control group (can also just call between-subjects, though nonequivalent control group is more specific)
100
What are the three types of replication
●Direct replication
●Conceptual replication
●Replication-plus-extension
200
What is the threat that is an external event that happens to most everyone in the study in between pre-test and post-test?
History
200
what kind of interaction is pictured here? (see image)
spreading
200
What are the two subtypes of repeated measures designs in quasi experiments?
○Interrupted time series design
○Nonequivalent control group interrupted time-series design.
200
What is it called when researchers explore the same research question but use different procedures
conceptual replication
300
What are two types of testing threats?
⚫Practice effect
🞆Scores improve over time
⚫Participant fatigue
🞆Scores decrease over time
300
How many IVs are in a 2x3 study
2
300
What is a stable baseline design?
-Researcher collects a bunch of measures before the intervention is applied, then continues regular data collection after the intervention is applied
300
what is harking
hypothesizing after results are know
400
What is a null effect?
🞆No effect of the independent variable = null effect/null result
400
A. What are the IVs in this study?
B. What is the DV?
BONUS: Does the 3 way interaction appear to be significant?
A. self efficacy; job control; selff efficacy
B. Affective strain at work (affect= similar to emotion)
C. Yes (the impact of job control on the relationship between job stressors and affective strain depends on the level of self efficacy)
400
Describe reversal design
-Researcher establishes a stable baseline
-Researcher applies the treatment
-Researcher establishes an intervention measure
-Researcher revokes the treatment
-Researcher establishes a secondary baseline
-Researcher re-implements the treatment
-Researcher establishes re-intervention measure
400
Name a few solutions for the replication crisis
Big picture:
“Badges” given on publications to indicate that the data are public and/or that the study was preregistered
Open Science Framework (osf.io)
Call for replication studies - direct and conceptual
Publish null effects