Pyschology Flashcards
(123 cards)
what is replication
a study that is conducted using the same or similar methods as the original investigation
why do psychologists replicate studies
in order to evaluate whether consistent results can be obtained
What is direct/exact replication?
A scientific attempt to exactly copy the scientific methods used in an earlier study in an effort to determine whether the results are consistent
What is Conceptual replication?
researchers re-test the same theoretical idea or hypothesis repeatedly, but use different populations, different ways of manipulating variables, different ways of measuring variables, or using different study designs.
What is replication + extension?
combine results from prior studies with results from a new study specifically designed to replicate and extend the results of the prior studies.
What is P-hacking?
the manipulation of data analysis until it produces statistically significant results, compromising the truthfulness of the findings.
is it even possible to perfectly replicate more complex
studies?/ How can we be sure the replication is unbiased?
Yes, but there are several things that are needed to do so
(psychological realism, resources, and more)
Is there a limit on how long ago a study was to be
replicated?
no. Any study can be chosen to be replicated, and
folks tend to have different attitudes toward replications when they
focus on newer vs older research
Why does the replication process, when/if it fails, make
other scientists criticize the original study versus the replicated one?
We should be critically evaluating the strengths
and weaknesses of both studies
what are the proper ways to decide whether the replication
is legitimate to overturn the original experiment. Does the replication
have to be exactly the same or few changes are allowed, and if
allowed, then how much change is allowed?
First, we should have multiple replications before we throw
anything out. And second, that’s a question that should be decided
by the scientific community (of the field being tested) and the
researchers involved
Did replication support a lot of experiments as correct?
Yes! Another recently published replication project (in psych and
economics) replicated about 2/3s of the selected studies
Developmental Psychology
The study of changes in physiology, cognition, emotion, and
social behavior across the lifespan.
Longitudinal designs
Cross-sectional Designs
Dynamic systems theory
development is a self-organizing
process, where new forms of behavior emerge from consistent interactions between a person/organism and their
environments (including cultural factors)
Descriptive Research
Observational studies (Naturalistic Observation, Archival Analyses, Ethnography), Case Studies/Interviews, Self-Report Surveys/Correlational Studies
Descriptive Statistics
Mean/average, median, mode, variability, standard deviation
Inferential Statistics
Help us infer whether differences between groups reflect true
differences or if they are probably due to chance
How do we think critically about research and
other claims?
by thinking of an ideal study for
the topic and comparing; also by looking for sources,
evaluating those sources, and then evaluating each step
in the research process
How do we design research studies to test our
ideas?
We plan multiple studies, starting with descriptive/correlational and moving up to experimental to balance the advantages and disadvantages of each type of design and recognize that each type of study answers a different question
How do we know research is strong & replicable?
We know it when it uses large sample sizes & good
data practices and when it is replicated lots of times
Ideal Scientific Method & Research Process
theory (what makes good theories), hypothesis, study, data, results, confidence, return to theory
Internal, external, and construct validity
incl. random selection/sampling, random assignment, double-blind, confounds, generalizability, operational definition