Question $1(1$ point$)$

Saved

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What tidyverse function would we use to pull in data from a specific location?

Question $1$ options:

read$\_$csv$()$

load$()$

read.csv$()$

load.csv$()$

Question $2(3$ points$)$

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A scale can be reliable but not valid.

Question $2$ options:

True

False

Question $3(3$ points$)$

Saved

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What term is defined as "whether an instrument can produce the same results under the same conditions"?

Question $3$ options:

Reliability

Question $4(3$ points$)$

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Question $4$ options:

You are testing the effectiveness of a drug in an experiment. The

group receives the drug.

Question $5(3$ points$)$

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In a single study, replication refers to collecting a sufficiently large sample.

Question $5$ options:

True

False

Question $6(2$ points$)$

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When performing research based on construct, it is critical that you have a solid $\_\_\_\_\_\_$ definition. When you have a solid $\_\_\_\_\_\_$ definition, people reading your research have a better sense about what exactly what is being measured and why.

Question $6$ options:

Question $7(2$ points$)$

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The further you get from direct measurement, operational definitions are increasingly important

Question $7$ options:

True

False

Question $8(2$ points$)$

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Random error is error that is assumed to cancel out over multiple measures.

Question $8$ options:

True

False

Question $9(2$ points$)$

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Which type of error is assumed to cancel out over multiple measures, from a CTT perspective?

Question $9$ options:

Systematic error

Random error

Neither

Question $10(2$ points$)$

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Question $10$ options:

The equation X $=$ T $+$ E$,$ where X $=$ observed score, T $=$ true score, and E $=$ error score is representative of

Question $11(2$ points$)$

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You step on a scale in the morning and weigh $157\mathrm{.}3$ lbs$.$ The most accurate scale in the world would indicate you weigh $158\mathrm{.}8$ lbs$.$ From a classical test theory perspective, the score of $157\mathrm{.}3$ is the...

Question $11$ options:

true score

observed score

accuracy ratio