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15 Cards in this Set
- Front
- Back
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EMPIRICAL
APPROACH |
KNOWLEDGE BASED ON OBVSERVATIONS
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HYPOTHESIS
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A STATEMENT OF WHAT YOU EXPECT THE RESULTS TO SHOW
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NON EXPERIMENTAL DESIGN
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SURVERYS
LONGITUDINAL STUDIES CASE STUDIES |
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DIFFERENCE BETWEEN EXPERIMENTAL + NON
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MANIPULATED DV
RANDOM ASSIGNMENT |
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CORRELATIONAL STUDY
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- NON EXPERIMENTAL
-2 VARIABLES -CONTINUIOUS -MEASURES STRENGTH AND DIRECTION OF VARIABLES |
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CAUSAL COMPARATIVE
[ EX POST FACTO STUDY ) |
-NON EXPERIMENTAL
-OBVSERVE AND DESCRIBE A CURRENT CONDITION -LOOK TO THE PAST TO IDENTIFY CAUSES (LUNG CANCER ) |
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GROUNDED THEORY
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THEORY THAT IS GROUNDED ON OBVSERVATIONS
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3 MAIN SOURCE OF BIAS
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-SAMPLES OF CONVIENCE
-VOLUNTEERISM -CENSUS |
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SNOWBALL SAMPLING
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The first respondent refers a friend. The friend also referes a friend, etc.
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SIMPLE RANDOM SAMPLING
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EVERYONE HAS THE SAME OPPURTUNITY TO BE INCLUDED
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SYSTEMATIC SAMPLING
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EVERY NTH PERSON IS SELECTED
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TO REDUCE SAMPLING ERRORS
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-INCREASE SAMPLE SIZE
-USE STRATIFICATION |
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STRATIFIED RANDOM SAMPLING
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The population is first divided into strata or based on designated criteria and then the sample is drawn, either proportionately or disproportionately, from each subgroup.
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CLUSTER SAMPLING
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Members of the population fall into clusters of people so the sampling process randomly selects whole clusters from the full population, where everyone in the selected clusters are considered part of the sample.
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PURPOSIVE SAMPLING
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The researcher uses special knowledge or expertise about specific group to select subjects who represent this population.
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