Human Development Methods (Chapter 2) Flashcards
Representative Sample
randomly selecting participants from the general population
great for generalizing findings
Convenient Sample
Participants are selected out of convenience or accessibility
not always suitable for generalizing
Selective Sampling
Participants are selected due to certain criteria
Limited generalization
Coding
Categorizing or classifying data based on specific criteria
Confounding Variable
Things other than what we’re testing accidentally change the results in experiment
Descriptive Design
Describe target behavior
Correlational Design
Discover how target behavior correlates with other variables.
Experiment
used controlled conditions to test cause-and-effect relationships
Natural Experiment
Uses naturally occurring events as a control to infer cause-and-effect relationships
Cross-Sectional Design
People of different ages are assessed on one occasion
Longitudinal Study
People of the same age are assessed over time
Sequential Study
People of different ages are assessed over time.
Cross-sectional Study Advantages/ Disadvantages
Adv: speedy and economical; shows similarities and differences among age groups
Disadv: can’t assess developmental changes and continuity; cohort differences may confound results
Sequential Study Advantages/Disadvantages
Adv: assessed developmental periods, checks for cohort differences, reduces attrition rates
Disadv: can’t investigate individual pathways across several developmental periods