2022 Introduction to Statistics in Research Mitchell 2nd ed

I N T R O T O R E S E A R C H : D A T A V I S U A L I Z A T I O N & C O M M O N S T A T T E S T S

Online Calculators and Statistic help

Statistics Kingdom: https://www.statskingdom.com/index.html

Stat Trek: https://stattrek.com/

Social Science Statistics: https://www.socscistatistics.com/tests/

Z-Score Calculator: https://www.calculator.net/z-score-calculator.html

Books suggested for additional understanding – always look in the SMWC library first.

DePoy, E. Gitlin, L. (2020). Introduction to research understanding and applying multiple strategies. Sixth Edition. Elsevier. St. Louis.

Patten, M. & Newhart, M. (2018). Understanding research methods: an overview of the essentials. (Tenth edition). Routledge.

Question 1: Four test scorers using the same assessment criteria checklist submit very different results for the same student project. This shows that the assessment criteria checklist has low __________ reliability. a. test-retest b. alternate forms

c. split-half d. interrater

Answer: d Question 2: After computing Cronbach’s alpha on her scale of verbal aggression, Makayla finds  = .72. What can she conclude?

a. Her scale shows acceptable internal consistency. b. Her scale shows acceptable content validity.

c. Her scale is not reliable. d. Her scale is not valid.

Answer: a

Question 3: Alice has developed a scale assessing the extroversion of young adults. She has college students complete her new scale and an existing scale of extroversion. She is hoping to find that scores on the two scales are positively correlated. Alex is testing the ______ of her scale. a. alternate forms reliability b. content validity c. convergent validity d. criterion validity

Answer: c

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