# rsch design

- StudyBlue
- New-mexico
- University of New Mexico
- Health Education
- Health Education Hed507
- Duryea
- rsch design

**Created:**2010-10-07

**Last Modified:**2011-07-06

#### Related Textbooks:

Educational Research: Competencies for Analysis and Applications (with MyEducationLab) (9th Edition)**Action research**

**Alpha coefficient**;

**Cronback alpha**

**researcher bias**

**Accessible population**

**Analysis of covariance (ANCOVA)**

**statistical significance**; it adjust scores on a

**dependent variable**for initial differences on other variables, such as pretest performance or IQ.

**Analysis of variance (ANOVA)**

**statistical significance**of differences among means; it can be used with two or more groups.

**Aptitude test**

**Associational research**

**Assumption**

**Attitude scale**

**Average**;

**Measures of central tendency**

A number representing the typical score attained by a group of subjects.

M**easures of central tendency: **Indices representing the average or typical score attained by a group of subjects; the most commonly used in educational research are the mean and the median.

**Causal-comparative research**

**Census Survey**

**Chi-square test**

**statistical significance**appropriate when the data are in the form of frequency counts; it compares frequencies actually observed in a study with expected frequencies to see if they are significantly different.

**Cluster sampling/cluster random sampling**

**Coefficient of determination (r2) "COD"**

**Cohort study**

**Collective case study**

**Comparison group**

**Concurrent validity (evidence of)**

**Confidence interval**

**Confirming sample**

**Constant**

Researcher bias - halo (all will be good) or pitchfork - all will be bad

Observation bias -

Sampling

goal is to slect participants who are REPRESENTATIVE of the entire population

groups are identified, not indiv.: 5th grader classes in APS, then randomly selct a certain # from each class (cluster)

See above

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