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[DOC File]Graphs used for categorical/qualitative data
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Examples of variables include: quantities such as gender, test scores, and weight; the value of these quantities vary from one observation to another. Types/Classifications of Variables. Qualitative. Quantitative. Discrete. Continuous. Qualitative Data. This data describes the quality of something in a non-numerical format.
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[DOC File]Describing and Interpreting Data
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The manner in which you analyze data depends on the type of data/variables that you are evaluating. There are several different classifications that are used in classifying data. Variable. A variable is an item of data . Examples of variables include quantities such …
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[DOC File]Experimental Design Worksheet
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Constants (controlled variables): fertilizer, size of pot, species of fern, amount of water, length of growth time, temperature, distance of light, etc. What types of measurements can Suzie make on the plants to determine how they did in different types of light? Mass the plant, height of plant, etc. KEY
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[DOC File]How to Design and Evaluate Research in Education
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Chapter 10 Descriptive Statistics (Tools to summarize data) Descriptive statistics describe many scores with just one or two indices (such as mean or median) Sample of a pop is described w/ indices called statistics. Entire pop is described w/ indices called parameters. Types of data (words or numbers)
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[DOC File]Types of Research Reports
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Variables under study. Purpose. Research questions/ or hypotheses. Literature review. Theoretical framework. ... Skip the statistics at first. Read for a purpose. Summarize. Critique each element. Substantive – importance to nursing/patient care ... Types of Research Reports ...
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[DOCX File]Stata – Commonly Used Commands and Useful Information
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This section covers basic information regarding the data types used by your data, size of memory allocated for data storage, variable and value labels, and descriptive statistics and plots. ... Table of summary statistics for one or more variables. tabstat var1, statistics (mean median min max count) ... Examples. Estat.
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[DOC File]Structural Equation Modeling - Department of Statistics
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Variables that are influenced by other variables in a model are called . endogenous. variables. GPA would be a endogenous variable in the previous example in (a). A variable that is directly observed and measured is called a . manifest. variable (it is also called an indicator variable in some circles).
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[DOC File]Introduction to Random Variables and Probability ...
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Discrete Random Variables . Continuous Random Variables. Discrete Random Variable. When the observations of a quantitative random variable can take on only a finite number of values, or a countable number of values. Examples of Discrete Random Variables: The number of students in a certain section of a statistics course this semester.
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[DOC File]Types of Variables - Astrostatistics
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The CDF Φ(x) is an elongated ess-shaped curve. The mean and variance of a normal distribution are the parameters µ and σ2. Many natural phenomena have normal distributions—physical measurements, astronomical variables etc. Page 5. Descriptive Statistics. Types of Data: We classify all ‘data’ about a variable into two types:
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[DOC File]Statistics and Research Methods
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Measurement of variables. SPSS tutorial . Descriptive Statistics 313-342 Jan 22 Over-View of Inferential Statistics, Cont. Independent and Dependent variables . Distributions. Sampling . Validity and Reliability. Homework Due: Descriptive Statistics 54-73 Jan 29 Correlation Analysis. Writing up Results 428-442. Feb 5 Independent Samples T-Test
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Types of variables statistics examples