# Question

An experimenter studies vision in low light by having participants sit in a darkened room for either 5, 15, or 25 minutes and then tests their ability to correctly identify 20 objects.

(a) What is the independent variable here?

(b) What are the conditions?

(c) What is the dependent variable?

(d) You would use the scores from which variable to create a frequency distribution?

(a) What is the independent variable here?

(b) What are the conditions?

(c) What is the dependent variable?

(d) You would use the scores from which variable to create a frequency distribution?

## Answer to relevant Questions

Our N is 50, and for some scores we have selected the proportion of the area under the curve is .60. (a) What percent of the time do we expect these scores to occur? (b) How many of our participants do we expect to have ...(a) Why must the cf for the highest score in a sample equal N? (b) Why must the sum of all f s in a sample equal N? You misplaced two of the scores in a sample, but you have the data indicated be-low. What should you guess the missing scores to be? Why? (a) What is the rule for when to make a bar graph in any type of study? (b) Variables using what scales meet this rule? (c) How do you recognize such scales? (d) What is the rule for when to connect data points with ...Foofy has a normal distribution of scores ranging from 2 to 9. (a) She computed the variance to be - .06. What should you conclude about this answer, and why? (b) She recomputes the standard deviation to be 18. What should ...Post your question

0