T1D2 Flashcards
Five methods for collecting data
Observation, survey and interview, standardized test, case study, physiological methods
Two types of collecting data
laboratory, naturalistic observation
Define Descriptive Research
Simply describes behavior
Define Correlational Research
Describes the strength of a relationship between variables of behavior and tries to make a prediction about them. Relation does NOT mean causation!
Define Experimental Research
Looks for a causal relationship between variables
Representative sample
A group that represents the whole population. Don’t ‘pick-and-choose’
Random assignment
Assigning participants to
experimental and control groups by chance. Causation CAN be established!
Example of ethical reasons not to do research
Example: to examine the effects of smoking on babies, you cannot ask the experimental group of mothers to smoke 5 cigarettes a day.
Cross-sectional Approach
Testing different age groups at the same time. Fast, cheap and easy research. Shows differences between cohorts . Not as reliable as longitudinal because cohort effects.
Longitudinal Approach
Testing the same group of people over many years. Shows how people in general develop when they age. People who stay in these studies are often a special kind of people.
Minimizing cultural and ethnic bias
Developmental research must include more people from diverse ethnic groups
Define Ethnic gloss
Portraying an ethnic group as if everybody in the group is the same
Define Evolutionary Psychology
Places emphasis on the importance of adaption, reproduction and ‘survival of the fittest’ in shaping behavior
Define Human Genome Project
The complete mapping and understanding of all the genes of human beings
Define Genome-wide association
Comparing genes of healthy and ill people to find information about the genes causing the illness. CRISPR can delete diseased genes.
Define Down syndrome
form of intellectual disability caused by the presence of an extra copy of chromosome 21, Physical and imtellectual abnormalities
Define Klinefelter syndrome
An extra X chromosome, making them XXY instead of XY causes physical disabilities.
Define Fragile X syndrome
An abnormality in the X chromosome, can cause intellectual disability, autism, a learning disability, or a short attention span .
