Rationalize the denominator. Give your answer in simplified form. 
Definitions:
Internal Referencing Strategy
A method wherein individuals compare their current situation, achievements, or outcomes against their previous performances instead of comparing themselves to others.
Post-only Design
An experimental design where measurements are taken only after the intervention, lacking a baseline measurement for comparison.
Time Series Design
A research design that involves observations of a particular variable or variables over a set period, allowing for the analysis of trends or changes over time.
Training Program
An organized course or set of courses designed to equip participants with specific skills or knowledge.
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