Exam 14: Basic Data Analysis

Tabulation refers to the orderly arrangement of data in a summary format.

All statistics that are appropriate to use for higher-order scales are also appropriate to use with lower-order scales.

Counting the different ways respondents answered a question and arranging them in a simple summary form yields a(n)____.

CHAID (chi-square automatic interaction detection)software makes searches through large numbers of variables possible.

An arrangement of data that shows the number of times each category occurs is called a(n)____ table.

When a data set is unimodal, a median split of the data is inappropriate.

An index split means that respondents below the observed median go into one category and respondents above the median go into another.

The transformation of raw data into a form that makes the data easier to understand and to interpret is called ____.

Failing to identify a hypothesized difference using a sample result when a difference really does exist in the population is a ____ error.

Carlos is examining the row and column totals in a contingency table.What are these called?

Compare and contrast Type I errors and Type II errors and explain which one is of more concern to researchers.

A data matrix that displays the frequency of some combination of possible responses to multiple variables called a(n)____________________ table.

Data with a(n)____ distribution are appropriate for division based on the median split.

Which data matrix displays the frequency of some combination of possible responses to multiple variables?

Researchers will often use dummy coding and effects coding together.

Scores or observations recalibrated to indicate how they relate to a base number are referred to as ____.

The term p-value stands for power-value.

A significance level is a critical probability associated with a statistical hypothesis test that indicates how likely it is that an inference supporting a difference between an observed value and some statistical expectation is true.

Suppose 60 males are asked if they recognize the brand name, "Focus, " and 35 of them correctly identify the product as a model of Ford's product line.The proportion of the sample who recognize this brand name is approximately ____.

When tabulation is done by hand to create a frequency table, the data are said to be ____________________.