2013 RMO Data Analytics Pre-Test

1. A proposed explanation for a phenomenon is...

R-square

P-value

Hypothesis

Correlation

A different meaning of the term hypothesis is used in formal logic, to denote the antecedent of a proposition; thus in the proposition "If P, then Q", P denotes the hypothesis (or antecedent); Q can be called a consequent. P is the assumption in a (possibly counterfactual) What If question.

Explanation

A different meaning of the term hypothesis is used in formal logic, to denote the antecedent of a proposition; thus in the proposition "If P, then Q", P denotes the hypothesis (or antecedent); Q can be called a consequent. P is the assumption in a (possibly counterfactual) What If question.

2. Data about data is called...

Big Data

Structured

Unstructured

Metadata

3. A qualitative research design aimed at exploring cultural phenomena

Metadata

Ethnography

Big Data

P-value

Ethnography, as the empirical data on human societies and cultures, was pioneered in the biological, social, and cultural branches of anthropology but has also become popular in the social sciences in general—sociology,[4] communication studies, history—wherever people study ethnic groups, formations, compositions, resettlements, social welfare characteristics, materiality, spirituality, and a people's ethnogenesis

Explanation

Ethnography, as the empirical data on human societies and cultures, was pioneered in the biological, social, and cultural branches of anthropology but has also become popular in the social sciences in general—sociology,[4] communication studies, history—wherever people study ethnic groups, formations, compositions, resettlements, social welfare characteristics, materiality, spirituality, and a people's ethnogenesis

4. A mathematical tool that is used to determine whether the outcome of an experiment is the result of a relationship between specific factors or merely the result of chance

Correlation

P-value

R-square

Statistical Significance

5. Proportion of variation explained by the model ... sometimes it is called the proportion of variance explained.

Statistical Significance

R-square

Correlation

P-Value

This is often called the "coefficient of determination." It is defined as the ratio of the sum of squares explained by a regression model and the "total" sum of squares around the mean.

Explanation

This is often called the "coefficient of determination." It is defined as the ratio of the sum of squares explained by a regression model and the "total" sum of squares around the mean.