RESEARCH Q3

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20 Terms

1

Interviews

Data collection method providing detailed insights through face-to-face, telephone, or CAPI, but can be time-consuming and expensive.

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2

Questionnaires

Cost-effective and anonymous data collection tools, either paper-pencil or web-based, but may have low response rates.

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3

Experimentation

Controlled study aimed at establishing cause-and-effect relationships; it is highly reliable but time-intensive.

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4

Observation

Data collection method that records real-time events, reducing bias but can be difficult to interpret.

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5

Data Organization

The process of classifying and structuring data to enhance usability.

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6

Graph

A visual representation of data relationships.

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7

Chart

A structured display of data in the form of tables, graphs, or diagrams.

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8

Bar Graph

A type of graph that represents independent values.

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9

Line Graph

A graph used to display trends and changes over time.

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10

Cartesian Graph

Graph that uses numerical axes to illustrate relationships, commonly used in algebra.

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11

Descriptive Statistics

Statistics that summarize and present data using graphs, tables, and measures of central tendency and variability.

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12

Inferential Statistics

Statistics that make predictions about a population based on a sample.

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13

Mean

The average value of a dataset.

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14

Median

The middle value in a dataset when arranged in order.

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15

Mode

The most frequently occurring value in a dataset.

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16

Range

The difference between the highest and lowest values in a dataset.

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17

Mean Deviation

The average of absolute differences from the mean in a dataset.

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18

Variance

The mean of squared deviations from the mean, useful for statistical comparisons.

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19

Standard Deviation

Measures the average distance of data points from the mean.

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20

Sample Standard Deviation

Using n-1 instead of n for a more accurate estimate of population variability, reducing bias in small samples.

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