# Question

Studies have shown that people with high intelligence are generally more likely to volunteer as participants in research, but not for research that involves unusual experiences such as hypnosis.

To examine this phenomenon, a researcher administers a questionnaire to a sample of college students. The survey asks for the student’s grade point average (as a measure of intelligence) and whether the student would like to take part in a future study in which participants would be hypnotized.

The results showed that 7 of the 10 lowerintelligence people were willing to participant

but only 2 of the 10 higher-intelligence people were willing.

a. Convert the data to a form suitable for computing the phi-coefficient. (Code the two intelligence categories as 0 and 1 for the X variable, and code the willingness to participate as 0 and 1 for the Y variable.)

b. Compute the phi-coefficient for the data.

To examine this phenomenon, a researcher administers a questionnaire to a sample of college students. The survey asks for the student’s grade point average (as a measure of intelligence) and whether the student would like to take part in a future study in which participants would be hypnotized.

The results showed that 7 of the 10 lowerintelligence people were willing to participant

but only 2 of the 10 higher-intelligence people were willing.

a. Convert the data to a form suitable for computing the phi-coefficient. (Code the two intelligence categories as 0 and 1 for the X variable, and code the willingness to participate as 0 and 1 for the Y variable.)

b. Compute the phi-coefficient for the data.

## Answer to relevant Questions

The regression equation is intended to be the “best fitting” straight line for a set of data. What is the criterion for “best fitting”? For the following scores, a. Find the regression equation for predicting Y from X. b. Calculate the predicted Y value for each X. For the following scores, a. Sketch a scatter plot and estimate the Pearson correlation. b. Compute the Pearson correlation. Research has demonstrated strong gender differences in teenagers' approaches to dealing with mental health issues (Chandra & Minkovitz, 2006). In a typical study, eighth-grade students are asked to report their willingness ...A recent study indicates that people tend to select video game avatars with characteristics similar to those of their creators (Bélisle & Onur, 2010). Participants who had created avatars for a virtual community game ...Post your question

0