ADPR 381 Test 2 Part A

represented by a row in a spreadsheet

respondents

represented by a column in a spreadsheet

survey questions/variables

a name for data that have not yet been aggregated or summarized

raw data

the sum of the values divided by the number of responses

mean

a lower form of statistics but CAN still be used to make strategic decisions

descriptive

can be skewed (either inflation or deflation) by outliers in a data set

mean

used to test differences in continuous variables (mean scores) between two groups

t test

used to test differences of continuous variables (mean scores) between three or more groups

ANOVA

examines the strength in relationship between variables

correlation

the process of categorizing open-ended response data into themes

coding

a small p-value (<0.05) indicates that we should reject this

null

the closer this is to 1 or -1, the weaker the relationship

correlation coefficient

a type of question with no natural order to the response categories

nominal

two types of questions with response options placed in a clear order and the distance between the response options are assumed to be the same

interval and ordinal

a type of question that results in values that can be counted as part of distinct groups

categorical

a type of interval scale that offers a range of options from one extreme to another

Likert

a type of question that suggests respondents give a socially desirable answer

loaded question

a type of question that implies preference for a particular response (e.g., please rate our delightful service)

leading question

this can be avoided by randomizing response options in a survey question

order bias

this is used to qualify potential respondents to take part in a study

screener question

this type of question screens out respondents who are not qualified

filter question

this explains the notion that an instrument is measuring what it is supposed to measure

validitiy

allows for comparison ratings of items in a survey and tracking

using same scale

the best chart for showing trends of the same variable over time

line chart