Psychology Research methods

the way a researcher selects participants from a population

• Correlation

• Sampling

• Variable

• Placebo effect

research method where the researcher observes the subject in a natural setting without interfering

• Naturalistic Observation

• Case Study

• Longitudinal study

• cross-sectional study

research method in which data are collected from groups of participants of different ages and compares so that conclusions can be drawn about differences due to age

• Naturalistic Observation

• Case Study

• Longitudinal study

• cross-sectional study

research method that involves an intensive investigation of one or more participants

• Naturalistic Observation

• Case Study

• Longitudinal study

• cross-sectional study

research method in which data are collected about a group of participants over a number of years to assess how certain characteristics change or remain the same during development

• Naturalistic Observation

• Case Study

• Longitudinal study

• cross-sectional study

the measure of a relationship between two variable sets of data

• Variable

• Sampling

• Correlation

• Control Group

any factor capable of change

• Variable

• Sampling

• Correlation

• Experimental group

the group to which an independent variable is applied

• Single Blind

• Double Blind

• Experimental Group

• Control Group

the group that is treated the same way as the experimental group except that the experimental variable is not applied

• Single Blind

• Double Blind

• Experimental Group

• Control Group

a situation where a researcher's expectations influence that person's own behavior, and therby influence the participant's behavior

• Placebo Effect

• Double Blind

• Self-Fulfilling Prophecy

• Single Blind