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# Psyc 354 Homework 4

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PSYC 354 Homework 4
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Sampling and Probability

When submitting this file, be sure the filename includes your full name, course and section. Example: HW4_JohnDoe_354B01
Be sure you have reviewed this module/week’s lesson and presentations along with the practice
data analysis before proceeding to the homework exercises. Complete all analyses in SPSS, then copy and paste your output and graphs into your homework document file. Answer any written questions (such as the text-based questions or the APA Participants section) in the appropriate place within the same file.

Questions 1–15

Part I: Concepts

These questions are based on the Nolan and Heinzen reading and end-of-chapter questions.

Questions 1-10

Fill in the highlighted blanks to answer/complete the statements.

1) A(n)   random sample occurs when everyone in the population has the same chance of being selected.

2) The ability to apply research findings to contexts or samples other than the one studied is called   generalizability.

3) The duplication of the results of a research study in a different context or with a different sample is called   replication.

4) Your own estimate of the likelihood that you will uphold your New Year's resolution is known as a(n)   personal probability.

5) Expected relative-frequency probability is computed as the number of successes divided by the number of   trials.

6) The experimental group is the group receiving the intervention or treatment of interest.

7) A statement that 2 populations are different from one another is a(n) research hypothesis.

8) If you find that the groups you studied differed from each other more than would be expected by chance alone, you reject the null hypothesis.

9) When you reject the null hypothesis but the null hypothesis is in fact true, you have made a(n)   Type I error.

10) When you fail to...

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