2.1- Research within Psych Flashcards
Objectivity
assumes that certain facts about the world can be observed and tested independently by the individual who describes them (ie: scientists)
Subjective
their knowledge of the event is shaped by prior beliefs, expectations, experiences, and their mood
objective measurement
the way a behaviour is measured must be the same - regardless of who is measuring or what tools are used
Variable
the object, concept, or event being controlled, manipulated, or measured by a scientist
operational definitions
statements of procedures for other scientists to understand- (ex: depression “a score of 20 or higher on the heck depression inventory”)
Validity
refers to the degree to which an instrument or procedure actually measures what it claims to measure
reliability
when it provides consistent and stable answers across multiple observations and points in time
test-retest reliability
examines wether scores on a given measure of behaviour are consistent across test sessions (similar scores overtime)
generalizability
the degree to which one set of results can be applied to other situations, individuals, or events
population
the group that researchers want to generalize about
sample
a select group of population members - once the sample is studied, then it is able to be generalized to the entire population of the group
random sample
a sampling technique in which every individual of a population has an equal chance of being included
convenience samples
samples of an individual who are the most readily available
ecological validity
the results of a lab study can be applied to or replicated in the natural enviroment
research bias
when various types of bias can be unintentionally introduced by the researchers (ie: the experimenter treating participants differently- causing it difficult to figure out if if the different results are actually accurate)