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I Clear

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

Citation: Mansoor. (2018, August 30). Improvised explosive device. Retrieved April 3, 2019, from https://www.britannica.com/technology/improvised-explosive-device

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.

Citation: Morgan, G. A., Leech, N. L., Gloeckner, G. W., and Barrett, K. C. (2013). IBM SPSS for introductory statistics: Use and interpretation. New York, NY: Routledge.

Category: Data analyses

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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.

Citation: Lewis-Beck, M., Bryman, A., & Liao, T. (2004). The SAGE encyclopedia of social science research methods (Vols. 1–3). Thousand Oaks, CA: SAGE Publications. https://doi.org/10.4135/9781412950589

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

Citation: Lewis-Beck, M., Bryman, A., & Liao, T. (2004). The SAGE encyclopedia of social science research methods (Vols. 1–3). Thousand Oaks, CA: SAGE Publications. https://doi.org/10.4135/9781412950589

Category: Data analyses

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

Citation: Hebl, M., & Lane, D. (n.d.). Inferential statistics. Retrieved February 28, 2019, from http://onlinestatbook.com/2/introduction/inferential.html

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.

Citation: Office of the Chairman of the Joint Chiefs of Staff. (2019). Dictionary of Military and Associated Terms. Washington DC: The Joint Staff.

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.

Citation: Inter- vs intra-. (2016, December 23). Retrieved April 17, 2019, from https://www.dictionary.com/e/inter-vs-intra/

Category: Theories

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Internal validity refers to the extent to which an intervention, rather than other influences, accounts for improved outcomes in an experimental study.

Category: Data analyses

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Internalizing behaviors are those characterized by experiences and processes that occur inside a person, like as depression or anxiety.

Category: Theories

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.

Citation: Maruyama, G. and Ryan, C. S. (2014) Research Methods in Social Relations. West Sussex: John Wiley and Sons Ltd.

Category: Study methods and variables

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