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[DOC File]STATS CHEAT SHEET - StFX
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Z-TESTS. In order to run a Z-Test you must be provided with. Population (Population (Equation: Critical Z-Test values: 1-Tailed 2-Tailed α = .05 1.64 1.96/-1.96 α = .01 2.33 2.58/-2.58 EXAMPLE: SINGLE SAMPLE T-TEST. In order to run a Single Sample T-test you must: Be provided with Population (Use the sample Standard Deviation to predict ...
what does the z score tell you

[DOC File]4
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generate age_z=(age-r(mean))/r(sd) An easier way to do this is to use egen (but that doesn’t demonstrate using local variables): egen age_z=std(age) e-class. Commands that return results in e-class variables are estimation commands such as regress, logistic, etc., that fit statistical models.
z scores explained easy

[DOCX File]SOCY498C—Introduction to Computing for Sociologists
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option to restrict the data to a single year. Example three estimates one model of sexual frequency regressed on age for each year. Example four simply includes the variable year as a covariate and is interpreted as “for every year there is an X increase/decrease in sexual frequency.”
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[DOC File]Data Screening Check List - California State University ...
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SPSS DESCRIPTIVES will give you the z scores for every case if you select save standardized values as variables and SPSS FREQUENCIES will give you histograms (use SPLIT FILE/ Compare Groups under DATA for grouped data). List all univariate outliers here and how they were handled. Attach a sheet if you need more room.
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[DOC File]PSYC137: ABNORMAL PSYCHOLOGY
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2/8 z-scores: Location of Ch 5 Scores and Standardized. Distributions MOD3. 2/15 Probability Ch 6 MOD4. 2/22 Probability cont. Exam 1 (Ch 1-6) Wednesday February 24. 2/29 Probability and Samples Ch 7 3/7 Introduction to Hypothesis Ch 8 MOD 5. Testing Spring Break 3/14-3/20
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[DOC File]Structural Equation Modeling - Purdue University
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Structural equation modeling (SEM) is a series of statistical methods that allow complex relationships between one or more independent variables and one or more dependent variables. ... The residuals of the covariances (not residual scores) need to be small and centered about zero. Some goodness of fit tests (like the Lagrange Multiplier test ...
what is a z score

[DOC File]1 - Williams College
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To assess whether food aid has an impact on child nutritional status, I run regressions on weight for age z-scores and height for age z-scores separately on children from 0-5 years old, and from 5-9 years old, for low-asset and high-asset households. Results for low-asset households are presented in Table 6, and for high-asset households in ...
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[DOC File]Data - Homepages at WMU
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Similarly, percent wasted and WHZ measure short-term malnutrition in opposite directions. The discussion in Section 4.2 is based on z scores. The multivariate analysis is based on the likelihood of being stunted or wasted. The pooled (2000 and 2005) data are used in all models. Therefore, all are controlled for a survey year dummy.
z scores explained

[DOC File]Maternal status and child health outcomes
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Z-scores of child weight-for-height and height-for-age are used to measure child health outcomes. Our estimation results show that maternal education and autonomy exert a far greater influence on child nutrition than father’s education. ... The answers to these questions were subjective and dummies were constructed. With regard to knowledge ...
what does the z score tell you

[DOC File]Z-Score Practice Worksheet
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z=2. A score that is 10 points below the mean. z=-1. A score that is 15 points above the mean z=1.5. A score that is 30 points below the mean. z=-3. The Welcher Adult Intelligence Test Scale is composed of a number of subtests. On one subtest, the raw scores have a mean of 35 and a standard deviation of 6. Assuming these raw scores form a ...
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Z scores for dummies