PSYC250 EXAM I PREP

Transforming scores

• Transform scores by averaging them only.
• Converting data to a different type of score

• Transform scores by simply ranking them without calculations.
• Transform scores by ignoring outliers completely.

Transforming Scores

nominal data

• data that can be ranked or ordered.

• numerical data with a defined order

• numbers used purely for categorization, order of numbers has no meaning (least info)

• Nominal data is a type of continuous data.

Nominal Data

statistics

• Another word for data

• any collection of numbers that represent a percentage

• represent population info, symbols in formulas from Greek alphabet

• represent sample info; symbols in formulas are from the English alphabet

Statistics represent ______ info.

Statistics

measures of central tendency

• Measures the center most score

• way of measuring/evaluating something based on what tends to be in the center/average (mean, median, mode)

• records the central data point

• a fancy term for statistics

measures of central tendency

mean

• generally the preferred measure of central tendency for interval/ratio data

• generally the preferred measure of central tendency for statistics

• generally the preferred measure of central tendency for nominal/ordinal data

• only used for ratio data