-
Achievement test
An instrument used to measure the proficiency level of individuals in given areas of knowledge or skill
-
Baseline
The graphic record of measurements taken prior to introdcuction of an intervention in a time-series design.
-
Categorical Data/variables
Data (variables) that differ only in kind, not in amount or degree
-
Chaos Theory
A theory and methodology of science that emphasizes the rarity of general laws, the need for very large data bases, and the importance of studying exceptions to overall patterns.
-
Discriminant function analysis
A statistical procedure for predicting group membership (a categorical variable) from two or more quantitative variables.
-
Explanatory mixed method design
A study in which quantitative data are collected first and findings tested with subsequent quantitive data
-
Focus group interview
An interview conducted with a group in which respondents hear the views of each other
-
General Reference
Sources that researchers use to identify more specific references (e.g. indexes, abstracts)
-
Implementation threat
The possiblility that results are due to variations in the implementation of the treatment in an intervention study, thereby affecting internal validity.
-
Interjudge Reliability
The consistency of two ( or more) independent scorers, raters, or observers.
-
Kuder-Richardson Approaches
Procedures for determining an estimate of the internal consistency reliability of a test or other instrument from a single administration of the test without splitting the test into halves.
-
A-B design
A sigle subject experimental design in which measurements are repeatedly made until stability is presumable established (baseline), after which treatment is introduced and an appropriate number of measurements
-
Likert scale
A self-reporting instrument in which an individual responds to a series of statements by indicating the extent of agreement. Each choice is given a numberical value, and the total score is presumed to indicate the attitude or belief in question.
-
Longitudinal Survey
A study in which information is collected at different points in time in order to study changes over time (usually of considerable length, such a several months or years).
-
Mann-Whitney U Test
A nonparametric inferential statistic used to determine whether two uncorrelated groups differ significantly.
-
Mean/Arithmetic Mean
The sum of the scores in a distribution divided by the number of scores in the distribution; the most commonly used measure of central tendency.
-
Moderator Variable
A variable that may or may not be controlled but has an effect on the research situation.
-
Multiple Analysis of Covariance (MANCOVA)
An extension of analysis of covariance that incorporates two or more dependent variables in the same analysis.
-
Nonequivalent Control Group Design
An experimental design involving at least two groups, both of which may be pretested; one group receives the experimental treatment, and both groups are posttested. Individuals are not randomely assigned to treatments.
-
Parametric Technique
A test of significance appropriate when the data represent an interval or ratio scale of measurement and other specific assumptions have been met.
-
Path Analysis
A type of sophisticated analysis investigating casusal connections among correlated variables
-
Pilot Study
A small scale study administerede before conducting an actual study; its purpose to reveal defects in the research plan.m
-
Predictive Validity (Evidence of)
The degree to which scores on an instrument predict characteristics of individuals in a future situation.
-
Quantitative Variable
A variable that is conceptualized and analyzed as distinct categories, with no continuum implied
-
Practical Action Research
Action research intended to address a specific local problem c
|
|
