GRE (Graduate Record Examinations) Psychology Measurement and Methodology-Statistical Procedures Study Material (Page 7 of 25)
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Introduction: Inferential Statistics
Inferential Statistics
While descriptive statistics tell basic information about the population or data set under study, inferential statistics use complex mathematical calculations to infer trends about a larger population based on samples. Inferential statistics derive relationships between variables within a sample, which can then be generalized to make predictions about larger population.
- Quantitative geography uses inferential statistics as it too costly or time-consuming to study an entire population or spatial domain.…
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Introduction: Functions of Statistics
Types of Data: Primary vs. Secondary Data and Qualitative vs. Quantitative Data
Primary vs. Secondary Data
Primary Data: Primary data is collected directly by an authorized organization, investigator, or enumerator for the first time. It is usually gathered through field research. E. g. , questionnaire filled by certain population sample can be used to co…
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