A researcher wanted to know if attractive people are more likely ...

[biggirl4568]

A researcher wanted to know if attractive people are more likely to receive help when in need, compared to unattractive people.
 
  If the investigator randomly assigned participants to groups that involved an attractive confederate versus an unattractive confederate, such a study would involve a _____ variable.
  a. measured
  b. manipulated
  c. task
  d. subject

Question 2

In psychological investigations, most of the error variance in a study typically comes from
 
  a. imprecise measurements made by the experimenter.
  b. systematic, explained variance from the independent variable.
  c. individual differences among the subjects.
  d. computer errors that occur in the data analysis.

[vish98]

Answer to Question 1

B

Answer to Question 2

c

[biggirl4568]

TYSM

[bulacsom]

Thanks for the timely response, appreciate it