KIN222 Lecture Notes - Lecture 11: Dependent And Independent Variables, Research Question
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20 Apr 2017
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Examining the simultaneous effect of more than one factor (independent variable). Examining the effect of 2 factors (independent) variables on a dependent variable. Types of 2 factor anova"s: between-between design, different research participants are assigned to different factors (independent variables) and levels. Example: examining the effects of physical activity level and gender on resting blood pressure: dv = The same research participant is exposed to all levels of only one factor (independent variable). Example: examining a new drug on reducing blood cholesterol levels: dv = The same research participant is exposed to all levels of both factors (independent variables). Example: measuring heart rate at 3 different exercise intensities on 2 different exercise machines (treadmill vs elliptical): dv = Effect of rest interval length on strength development: n=15 adults, random group assignment. Training program, 3 days/week, 4 weeks: maximal intensity resistance training (knee extension and knee flexion). Results: n=14 men, 15 women (young adult), healthy.