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ompatibility Mode] Search in Documen Share ^ c AaBbceDde AaBbC AaBbCcDdE AaBbCcDdEe AaBbCcDdEe Normal No Spacing Heading 1 Subtle Emph... Emphasis Styles Pane Heading 2 Titte 24. A researcher asks a sample of brothers and sisters to rate how positive their family environment was during childhood. In this study, the differences in ratings between each brother and sister pair were compared. The type of design described here is called a A) repeated measures design B) matched samples design C) both A and B 25. A researcher records the time it takes (in seconds) for participants to respond (by pressing a key) to a familiar versus an unfamifiar word flashed onto a computer screen. In this study, the difference in response time for each participant is compared. The type of design described here is called a A) repeated measures design B) matched samples design C) both A and B 26. Which of the following is a type of related samples design in whích different participants are actually observed in each group, but treated statistically as if they are the same persons in each group. A) repeated measures design B) matched samples design C) pre-post design D) within-subjects design 27. For the related samples t test, assuming that all other values remain constant then as samples size increases A) the value of the test statistic increases B) the power to detect an effect increases C) the estimate for standard error decreases D) all of the above ed 28. The related samples design can the power to detect an effect by making the standard error , A) Increase; smaller B) increase; larger C) decrease; smaller D) decrease; minimal ng theExplanation / Answer
24. The answer is Option B, matched samples design. This is because it involves pairs of brothers and sisters, whose differences in scores are compared against one another.
25. The answer is Option A, repeated measures design. This is because the same group of participants are being utilised for the different conditions of the experiment.
26. The answer is Option B, matched pairs design. This is because when the participants are matched, either individual characteristics are noted based on which they are allowed pairs. After the pairs are made, they are statiscally treated as a single group.
27. The answer is Option D, all of the above. Increasing the sample size increases the value of the t statistic and the power of the test while decreasing the estimate of standard error.
Please post the other questions separately as we are supposed to answer one or four sub parts of a question.
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