...

Biology Department

by user

on
79

views

Report

Comments

Transcript

Biology Department
Biology Department
Assessment Pilot
Carla Hass [email protected]
Assessment Plan
• Objective: To measure student learning on a
specific topic, meiosis, through the use of
specific questions on exams
• Evidence: Performance on multiple choice
questions related to this top placing them on:
–
–
–
–
a pretest
an exam during the semester
the final (use the most challenging questions)
a pretest for a course that has Bio 110 as a
prerequisite (we used Bio 240W)
Assessment Development
• Met with a group of faculty from departments that
offer a degree in Biology (UP, Altoona, Behrend,
Abington plus two other interested campuses)
• Initial meeting was seven people plus moderator
• Decided as a group to focus on the single topic –
meiosis
• Decided upon using exam questions due to class sizes
at UP with the hope of developing a tool that could be
used at multiple campuses
• Set up an ANGEL group for assessment
• Wrote the pretest for use in the fall semester and
sent it to the members of the group for their
comment/use
• Specified learning goals/objectives during the
semester
• Helpful strategies
– Involving multiple campuses
– Having a face-to-face meeting
– Having an “outside” moderator
(Suzanne Weinstein)
• Barriers
– Agreeing on questions to use – never reached
complete agreement so initial attempt may be of
limited use across campuses
– Multiple faculty teaching separate sections of the
same course at the same campus using different
exams
Initial Data Collection AY 11/12
• So far……
• Fall Bio 110
– Pretest – 44 questions – 7 on meiosis
– Exams 2 and 4 – used 6 of these questions
– Final exam – repeated two questions
• Spring Bio 110
– Pretest – identical to Fall Bio 110
• Spring Bio 240W
– Pretest – used 3 questions relevant to material in
that course (need to be able to ask during the
semester)
Learning gains were made during
the semester
Fall 2011Pretest
Exam 2
Final
Spring Pretest
N=694 N=311
N=703 N=314
N=297
N=279
Quest Answers
Thomas Sparks OsmondThomas Sparks
Sparks
Kern
Which one of these statements is true of both mitosis and meiosis at some point during each process?
Homologous chromosomes
22 pair.
24.1
20.1
20.4
12
23.3
Crossing over takes place.
28.5
23.5
1.4
1.6
2
30.5
Non-homologous pairs7.3of chromosomes
5.1
show independent
3.7
3.2 assortment. 1
9
The centromere splits
41.9and sister
47.3 chromatids
74.1
are separated.
74.8
85
37.3
Which of these places the meiotic events that can produce genetic variation among gametes in the correct order (earliest to latest d
DNA replication – homologous
37.9
36 chromosomes
74.7pair 76.1
- crossing over – 84
independent assortment
32.3
homologous chromosomes
23.3 pair
25.1- crossing over5.3
– DNA replication
4.1
– independent
2
assortment
25.1
DNA replication – homologous
25.4
24.1
chromosomes 17.4
pair – independent
18.2
assortment
13 – crossing over
24.7
independent assortment
12.8– homologous
14.5
chromosomes
2.1 pair
1.6– DNA replication
1 – crossing over
17.9
The questions will be used on the
Bio 230W pretest in Fall 2012
Learning gains during the semester
persisted into the next course
Fall 2011 Pretest
Exam 2
Sp 2012 Pretest
N=694 N=311 N=703 N=314
N=279 N=571
Question Answers
Thomas Sparks Thomas Sparks
Bio 110 240W
Moderate learning gain - signficiant prior knowledge
You are studying a species of organ pipe cactus in Utah and discover that the cells in the cactus stems
have 22 chromosomes. How many chromosomes would be found in the pollen (sperm) of this species?
11
73.6
70.7
90.9
89.8
68.5
90.9
22
18.7
21.2
7.3
8.9
22.9
8.6
33
1.7
1.3
0.6
0.6
2.2
0.4
Only animals undergo sexual
5.9 reproduction
6.8
and
0.7produce0.6
gametes.
6.5
0.2
Significant learning gain - moderate prior knowledge
During the human life cycle, the process of _______________
is responsible for producing sperm and eggs; the only ______________ cells are the gametes.
meiosis / diploid
24.8
27
3.6
8
30.5
6.5
mitosis / diploid
15.7
15.4
2
0.6
17.2
4.6
meiosis / haploid
48
49.2
87.5
85
35.1
80.7
mitosis / haploid
11.5
8.4
6.4
6.4
17.2
8.2
Material not covered in Bio 110
showed little learning gain in pretest
for the next course in the sequence
Fall 2011
Pretest
Spring Pretest
N=694 N=311
N=279 N=571
Quest Answers
Thomas Sparks
Kern 240W-D
In humans, the meiotic division and subsequent modifications of cells produced during spermatogenesis and oogenesis ultimately result in:
four sperm cells and four egg cells. 14.7
11.3
11.5
23.6
two sperm cells and two egg cells.
26.7
23.8
32.3
17.3
four sperm cells and one egg cell. 35.2
37.6
28.7
44
two sperm cells and one egg cell
23.3
27.3
27.6
15.1
This material is covered in Bio 240W
and learning gains will be assessed by
including this question on an exam
during the semester
Fly UP