3 - Nature of Quantiative Research Flashcards
the main steps in quantitative research
theory, hypothesis, research design, devising measures of concepts, select research site, select research subjects/respondents, administer research instruments/collect data, process data, analyze data, findings/conclusions, write up findings/conclusions
concept
ideas or mental representations of things
- building blocks of theory
- represents points around which social research is conducted
- categories for organization of ideas/observation
- concept can be interdependent or dependent variable, descriptive or comparative
independent variable vs dependent variable
something to be explained vs possible explanation
concept can be descriptive or comparative
changes in amount of social mobility in Canada over time vs variations among comparable nations in levels of social mobility
why measure concepts?
- allows for delineation of fine differences between people in terms of characteristic in question (it’s harder to recognize fine distinctions than extreme differences)
- Provides consistent device for gauging distinctions (measure’s results shouldn’t be affected by time/person administering the measure)
- Provides basis for estimates of the nature/strength of relationship between concepts
Indicators
stand for or represent concept, necessary to measure concepts (can be indirect, for example absenteeism as an indicator for low job satisfaction)
two types of definitions of concepts in quantitative research
- nominal; describes in words like dictionary (crime is any violation of the Criminal Code of Canada)
- operational; spells out operations that will be performed to measure concept (to measure crime, this researcher will use statistics provided by police force)
ways to devise indicators
through questions part of the interview/questionnaire (respondents attitudes, personal experiences, behaviours, etc)
developing criteria for classifying observed behaviour (pupil behaviour in classroom)
through use of official statistics (stats canada)
developing classification schemes to analyze written data (analysis of how newspapers characterize sex workers)
using multiple-item measures in survey research
single indicator may misclassify some individuals if wording leads to misunderstanding of meaning
single indicator may not capture all meaning in underlying concept
multiple indicators allow for finer distinctions and sophisticated data analysis
reliability
concerned with consistency of measures by looking at stability over time, internal reliability, and inter-observer consistency
stability over time
- whether results fluctuate as time progresses, assuming that thing being measured isn’t changing
- most thermometres have this reliability
- test using Test-retest method
internal reliability
- aka consistency
- multiple measures administered in one sitting should be consistent
- cronbach’s alpha coefficient
- split half method
cronbach’s alpha coefficient
commonly used test in which 1 is perfect internal reliability and 0 is no internal reliability, and .8 is typically considered minimum acceptable level
split half method
indicators divided into two halves, respondent’s scores should correlate, in which 1 is perfect internal reliability and 0 is no internal reliability
inter-observer consistency
- judgements between several researchers in activity involving subjective judgement
- ex: classifying and categorizing open answers