7. A occurs at a series of price lows when the price reaches a new low unconfirmed by a new low in the oscillator. a. positive divergence b. negative divergence c. breadth thrust d. sell signal 8. Moving averages tend to change direction well after a peak or trough in price and therefore are considered "late" in changing direction. Which of the following is generally is considered the most effective way to offset this tendency to lag? a. using a weighted moving average b. using an unweighted moving average c. using moving average crossovers d. none of the above 9. An exponentially smoothed moving average a. excludes older price points in the calculation b. gives more weight to more recent observations c. cannot be plotted on a bar chart d. none of the above all of the above 10. A momentum index measures a. investor sentiment b. investor psychology s, the rate of change of prices d. absolute volume level