Research participants' results on the coin-rotation task are compared with their results on a test of grip strength (a measure of another construct: global upper-extremity strength). It involves timed completion of twenty 180° rotations of a nickel using the thumb, index, and middle fingers.
(2009) introduced a coin-rotation task as a convenient test of motor dexterity. Which empirical way of assessing construct validity is being used?Į. Research participants' results on the coin-rotation task are compared with their results on two widely used tests of motor dexterity: the finger-tapping task and the grooved pegboard task. The cloud of points would slope downward from left to right. The cloud of points would slope upward from left to right.
The cloud of points would slope downward from left to right.ĭ. The cloud of points would have no slope at all.Ĭ. There isn't enough information given to determine this.ī. Which of the following would a scatterplot of these results (coin-rotation scores on the x-axis, finger-tapping scores on the y-axis) look like?Ī. The results indicated that there was a statistically significant relationship between the finger-tapping task and the coin-rotation task (r = −.40). The results were compared with the results of another widely used test of motor dexterity, the finger-tapping task, in which participants tap their index fingers as many times as possible in 10 seconds. Which type of quantitative variable is this?ĭ. The total number of instances of aggression for each child is used to quantify the aggressiveness of each child. Lorenzo and his lab partner observe the children while they play, and record instances of aggression. Internal Lorenzo is studying aggression in children. Which type of reliability is he examining with this questionnaire?ĭ. Lorenzo runs a statistical test to find how consistent the responses are to different wordings of items on the questionnaire given to the children. He administers a questionnaire to the children that asks them about their feelings of aggression. Lorenzo is studying aggression in children.
0 kommentar(er)
