exam 3 Flashcards
research strategy
a general approach to reseach determined by the kind of question that the research study hopes to answer
description research strategy
description of individual variables
linear relationship
increasing straight line
positive relationship
as one varaible increases, so does the other
negative relationship
as one variable increases, the other decreases
correlational research strategy
only attempts to describe the relationship
experimental research strategy
intended to answer cause and effect questions about the relationship between two variables
quasi experimental research strategy
involves the manipulation of an independent variable without the random assignment of participants to conditions or orders of conditions.
nonexperimental research strategy
inteneded to demonstrate a relationship between variables but does not attempt to explain the relationship
purpose of descriptive research
produce a description of individual variables as they exist within a specific group
purpose of correlation research
produce a description of the relationship between two variables but does not attempt to explain the relationship
purpose of quasi-experimental
attempt to produce a cause and experiment but fall short
purpose of non experimental research
produce a description of the relationship between 2 variables but do not attempt to explain the relationship
research design
a general plan for implementing a research strategy
1. group vs individual
2. same individuals versus different individuals
3. the number of variables to be included
research procedure
is an exact, step by step description of a specific research study
external validity
the extent to which we can generalize the results of a research study to people, settings, measures, and characteristics other than those used in that study
threat to external validity
is any characteristic of a study that limits the ability to generalize the results from a research study
internal validity
it produces a single explaination for the relationship between two variables
threat to internal validity
any factor that allows for alternative explanation
the degree to which your research results generalize beyond the specific characteristics of your study refer to
external validity
selection bias
sampling procedure favors the selection of some individuals over others
volunteer bias
volunteers dont perfectlt represent the general population
participant characteristics
threat to external validity if participants chosen are similar
cross species generalizations
research conducted with nonhumans and prosumed to applicable to humans
novelty effect
participants percieve or respond differently because they are excited or anxious
sensitization
raises the question of wether the results obtained in a research study using assessment are different from results in the real world
confounding variable
extranous variable the changes systemiatically along with the two variables being studied
participant variables
height, weight, gender, age
time related variable
threat for designs that compare one group over time