Sprint 8:35 PM In-Class Final pages 1-3 PDF 1.1 MB Close welcome to use the full

Question

Sprint 8:35 PM In-Class Final pages 1-3 PDF 1.1 MB Close welcome to use the full period if you wish. 1 of 3 Matching. Read each of the 7 scenarios below and decide which of the following 7 statistical tests that we have learned is most appropriate to test the research question (5 pts each) Consider factors ike numerical vs cateporical variables, scores vs frequencies, number of variables, number of groups, and what we know about the populations. Then, on the blank, list the mest important factor that helped you decide the most appropriate test for that problem (3 pts each). 1) An experimenter planned a study in which a crucial step was offering participants a food reward, and having three food rewards that were equal in appeal was important. Thus, participants in a pilot study were asked which of three rewards they preferred. Of the 60 participants, 16 preferred cupcakes, 26 preferred candy bars, and 18 favored dried apricots. Do the results suggest that people prefer different foods in general? Statistical test (oircle the most appropriate test for this problem e One-way ANOVA b Dependent-samples t-test c. Single-sample t-test f Two way or Factorial ANOVA &Chi-squore; What is the mest important factor that helped you decide? 2) Asocial psychologist conducted a study of whether similarity to a potential date(predicted attraction to that potential date(n Statistical test: One woy ANOVA Two-way or Foctorial ANOVA e. b. Dependent-semples tte c. Single-sample t-test E Chi-square What is the most important factor that helped you decide? 3) A developmental psycholopist who wanted to know if children who started walking earlier performed better in school drvided ESave Email Statistical test: f Two-way or Factonial ANOVA

Explanation / Answer

(1)

(i) Correct option:

(g) chi-square

(ii) Important factor: Viables are categorical. Chi-square test for independence is applied when we have two categorical variables from a sigle population.

(2)

(i) Correct option:

(d) Correlation/ regression

(ii) Important factor: Here, the test is whether similarity to potential date (X) predicted = attraction to that potential date(Y). Correlation/ regression depermines the association of two variables: X and Y.

(3)
(i) Correct option:

(d) Dependent sample t test

(ii) Important factor: Here, the same samples (Children) are tested : Sample 1: Who started walikg earlier and Sample 2: performed better in school.

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