PYB210 Lecture Notes - Lecture 8: Inverse Trigonometric Functions, Analysis Of Variance, Statistical Hypothesis Testing
24 Oct 2013
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Breaches of the assumptions can result in either an inflated or deflated estimate of the true. As f = bg/wg, this will subsequently either inflate or deflate the obtained f value. Linear structural model for one-way between groups anova. The total variability associated with any score can be partitioned into wg and bg components. Another way of looking at this is score = pop. The linear structural model is breached if an extraneous variable confounds the iv (that is, the ev has a systematic effect which varies between the levels of the iv). As a result, the bg variability will either be raised or lowered depending upon whether the. Ev adds to or subtracts from the effects of the iv. Thus the f-ratio will be either inflated or deflated leading to an increase in either type i or. Type ii error rate respectively (f = bg/wg). Therefore you need to control all evs or include them as extra ivs.
