please help

Question 15 2 pts A balanced scale on a survey has more negative answers than positive o the same number of positive and negative answers O more positive answers than negative O an unequal number of positive and negative answers Question 16 2 pts A scale that measures only one attribute or concept is afn) o interval scale O multidimensional scale Oratio scale unidemensional scale Question 17 2 pts A series of statements in which respondents are asked to indicate their level of agreement or disagreement is aln) O rank order scale 0 Likert scale graphical rating scale O Semantic differential scale