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REACH Dictionary
I Clear

An IED is a "homemade" bomb which can be made in a wide variety of sizes and forms.

Category: Military

Independent sample t-tests are used to measure the statistical significance of the relationship between variables when the study meets these criteria: "the independent variable has only two values, the design is between groups, and the dependent variable is normal/scale data." Sample size influences the t value used to measure statistical significance, so small samples require a larger t to be significant.

Category: Data analyses

Related Terms:

Independent variables are those which researchers believe causes an outcome on another variable, the dependent variable. In experimental research, the independent variable is manipulated by the researcher and applied to the subject or subject group to measure the effect of the independent variable on the dependent variable. In nonexperimental research, the independent variable is the variable which, although not manipulatable, is the variable from which causal inference is implied.

Inference, in statistical terms, refers to the estimation of how well sample population parameters reflect the larger population parameters.

Category: Data analyses

Related Terms:

Inferential statistics involves the interpretation of data, typically collected through random sampling, in order to make conclusions about the larger population from the sample.

Category: Data analyses

6 Injury

Injury includes physical damage to an individual resulting from exposure to extreme conditions, such as extreme temperatures, poisoning, or combat.

Category: Military

7 Inter

The prefix inter- is used to denote something which occurs between or among groups. This is not the same thing as intra-, which refers to something occurring within an individual or particular group.

Category: Contextual

Related Terms:

The interrupted time-series design is a longitudinal design involving the implementation of an intervention to evaluate its effects on the variables being measured over time.

Category: Study methods and variables

Related Terms:

Interviewer bias occurs when the interviewer has previous knowledge of the outcome of interest, thus resulting in a difference between how information is solicited, recorded, and inter

Category: Errors and biases

10 Intra

The prefix intra- is used to denote something that occurs within an individual or a particular group. This is not the same thing as inter-, which refers to something occurring between or among groups.

Category: Contextual

Related Terms:

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