Flashcards
AGEE 642, Chapter 5, Class 5 Sept 19
Cards in this deck (20)
- 1What are two reasons for stating a hypothesis before data gathering?1) A well grounded hypothesis indicates sufficient knowledge on subject
2) Gives direction to the collection and interpretation of the data - 2What is the purpose of a hypothesis?- To make a statement about how the variables in the study may be related
- Provides a relational statement that is directly testable in a study
-Stimulate research/new knowledge
-Provides direction to the research
-Provides framework for reporting findings and conclusions - 3This type of hypothesis is formulated from observations. i.e. Students learning of computer programming in the middle grades increases their development of logical thinking skills.Inductive Hypothesis
- 4This type of hypothesis leads to a more general system of knowledge, builds on existing facts and theories to generate new knowledge.Deductive Hypothesis
- 5What are 5 characteristics of a useable hypothesis?1) States the expected relationship between variables
2) Identifies the independent and dependent variables
3) Must be testable
4) Consistent with the existing body of knowledge
5) Stated simply and concisely - 6A hypothesis developed from observation, related literature, or theoryResearch (Alternative) Hypothesis
- 7Hypothesis that states the direction of the predicted relationship or difference between variables.Directional Hypothesis
- 8Hypothesis that states a relationship exists, but does not specify the direction of the expected finding.Non-Directional Hypothesis
- 9This hypothesis is alternative to the null hypothesis and specifies other possible ways the population means can differ. Usually states in a directional form. i.e. There is a positive relationship between age of the student and composite ACT scores.Alternative (Research) Hypothesis or H1
- 10Hypothesis stated in a non-directional (no relationship) format. i.e. There is no relationship between the age of the student and composite ACT scores.Null Hypothesis or H0
- 11If researchers _______ the null hypothesis, they conclude that there IS a relationship between the variables of the study.Reject
- 12What are the steps in testing the hypothesis?1) State in operational terms
2) State the null hypothesis
3) Research method that will enable relationship to be observed
4) Gather and analyze the data
5) Determine if evidence is sufficient to reject the null hypothesis - 13If Ho is rejected, but Ho is actually true, what type of error is this?Type 1 error, probability = alpha
- 14If Ho is accepted (fail to reject), but Ho is false, what type of error is this?Type II error, probability = B
- 15The decision to accept or reject the null is based on what three things?Sample size (statistical significance), effect size, and interactions
- 16If the study is a survey, case study, or correlational study, should you use hypotheses or research questions?Research Questions
- 17If the study is ex-post facto or experimental, should you use hypotheses or research questions?Hypotheses
- 18An example of a research question:What were the attitudes of WV's agricultural education teachers toward biotechnology?
- 19An example of a null hypothesis:There is no difference in the performance of students taught mathematics by Method A and those taught mathematics by Method B.
- 20An example of a research hypothesis:Students taught by laissez-faire teachers will show higher problem solving skills than students taught by authoritarian teachers.
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- Midterm AGEE 642 Flashcards on AGEE 642, Chapter 5, Class 5 Sept 19, created by Renee Conneway on 13/10/2017.
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- Renee Conneway
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