Does it appear that collective self-efficacy

Assignment Help Applied Statistics

Reference no: EM131209137

Independent Worksheet # 1: A review of Introductory Statistics (including t-test and correlation)

Briefly, the study involves middle grade teachers. The schools where the data were collected are of two types: Type A schools use teaming as the instructional model. That is, content teachers (math, English, Science, etc.) work together in teams for instructional purposes. Type B schools do not use teaming. The core purpose of the study is to see if this difference in instructional format affects Self-Efficacy. The student collected data on two types of self-efficacy: Collective Self-Efficacy and Personal Self-Efficacy. Collective Self-Efficacy is the teacher's perception that the school and the teachers in the school are effective and competent. Personal Self-Efficacy is the teacher's perception of her or his own competence and effectiveness.

Descriptive statistics for Collective Self-Efficacy and Personal Self-Efficacy are presented in Table 1. For both scales the minimum score is 20 and the maximum score is 100.

Table 1a: Descriptive Statistics for Collective and Personal Self-Efficacy

	Collective Self-Efficacy	Personal Self-Efficacy
N	110	110
Mean	56.5047	61.3818
Median	57.0000	61.5000
Mode	59.00	81.00
Std. Deviation	6.74659	12.61278
Variance	45.516	159.082
Skewness	-.854	.173
Kurtosis	.803	-.995

At-test comparing Collective Self-Efficacy and Personal Self-Efficacy was computed. For this analysis t = 4.25, p = .000, partial eta squared = .055.

Differences between male teachers and female teachers were computed. These results are presented in Table 2.

Table 2a: Means and Standard Deviations for Collective and Personal Self-Efficacy by Gender

	Gender	N	Mean	Std. Deviation
Collective Self-Efficacy	Male	28	55.7500	7.59934
Collective Self-Efficacy	Female	82	56.8205	6.47622
Personal Self-Efficacy	Male	28	59.4643	10.08292
Personal Self-Efficacy	Female	82	63.8395	13.32240

Table 2b: Results of t-tests for Collective and Personal Self-Efficacy by Gender

t-test

Sig. (2-tailed)

Partial Eta Squared

Collective

Self-Efficacy

-.716

108

.476

.003

Personal

Self-Efficacy

-2.35

108

.015

.041

Results for teachers who do or do not work in teams are presented in Table 3:

Table 3a: Means and Standard Deviations for Collective and Personal Self-Efficacy by Team Membership

		N	Mean	Std. Deviation
Collective Self-Efficacy	Team	86	56.5244	6.74624
Collective Self-Efficacy	Non-Team	24	56.8750	6.67450
Personal Self-Efficacy	Team	86	64.6353	12.39417
Personal Self-Efficacy	Non-Team	24	57.4167	12.84664

Table 3b: Results of t-tests for Team Membership

t-test

Sig. (2-tailed)

Partial eta squared

Collective

Self-Efficacy

-.224

108

.823

.001

Personal

Self-Efficacy

2.807

108

.004

.061

Correlations between various demographic variables and Collective and Personal Self-Efficacy are presented in Table 4:

Table 4: Correlations


		Collective Self-Efficacy	Personal Self-Efficacy
Gender	Pearson Correlation	.070	.283*
	Sig. (2-tailed)	.476	.015
	N	106	109
Years Teaching	Pearson Correlation	.248^*	.216^*
	Sig. (2-tailed)	.014	.032
	N	97	99
Degree	Pearson Correlation	.028	.117
	Sig. (2-tailed)	.775	.225
	N	107	110
Years in District	Pearson Correlation	.175	.140
	Sig. (2-tailed)	.082	.162
	N	99	101
Years in Building	Pearson Correlation	-.033	-.134
	Sig. (2-tailed)	.751	.185
	N	97	99
Years in Current Position	Pearson Correlation	-.036	-.135
	Sig. (2-tailed)	.725	.184
	N	97	99
*. Correlation is significant at the 0.05 level (2-tailed).

Note: Gender is scored where Males = 1 and Females = 2

Degree is scored where Bachelor's = 1; Master's = 2 and Doctorate = 3

Questions:

Q1: How would you describe this study in terms of its design? (That is, is this experimental research? If so, what kind of experiment? Is it correlational? Is it a mixed methods study? Etc.)

Q2: Does it appear that Collective Self-Efficacy and Personal Self-Efficacy are normally distributed?

Q3: Looking at the data in Table 1a, are there any issues you see that might warrant investigation in terms of the data?

Q4: What kind of t-test was used to compare Collective Self-Efficacy and Personal Self-Efficacy (the sentence after Table 1a). What does the result indicate?

Q5: What kind of t-test was used for the data in Table 2b? Interpret what these data show.

Q6: What kind of t-test was used for the data in Table 3b? Interpret what these data show.

Q7: Interpret the results of the correlations (Table 4).

Q8: Looking at the results presented, do you think the student will be happy? (That's a strange way of saying: do you think the data make any sense.)

Reference no: EM131209137

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